Badlands National Park by Month: Weather, What’s Open & When to Go (2026)
Badlands National Park · every month
Pick a month. Stand in it.
Average temperatures from NOAA, daylight from the sun's math, fees and season dates from the park's own pages. Choose a month and the page changes to what the Badlands are actually like then.
average highaverage lowprecipitationsnowhours across the top = daylight
Porcupine 11 N, Sd Us, 2,820 ft (NOAA 1991-2020 normals, station USC00396736). Tap a column or pick a month below.
Which month are you thinking about?
Showing all twelve months. Pick one and the page becomes that month.
Last updated September 3, 2026 How we research
Badlands weather runs from one extreme to the other. January afternoons average the mid 30s and the park's own history includes cold of -40°F; July afternoons average 88°F on trails with no shade at all. The park never really closes, but what it feels like changes completely, and the interesting months are the shoulders, when the mud, the thunderstorms and the crowds all move at once.
The chart shows the whole year at the Porcupine climate station, 2,820 feet up on the prairie. Below it, every month has the same five answers: what the weather feels like, how much daylight you get, what is open, how busy it is, and what to do. Fees and season dates come from the park's published pages, not from a visit.
When does it first snow?
The NOAA normals for the Porcupine station in this page's data carry precipitation only, not a monthly snow column, so the snow story comes from the park's own seasonal pages. October snow is possible at higher elevations inside the park, November is the transition month, and the real snow season is December through February, when the park reports a seasonal total of 12 to 24 inches that is not evenly distributed. Freezing rain, ice storms and blizzards can close roads for short stretches from December through March, and March can still hold snow that is only starting to melt.
Badlands National Park in January
January: the coldest month, and the emptiest
Highs in the mid 30s, lows around 10, and just over nine hours of daylight. The formations hold snow in their stripes and the wind chill does the rest; the park calls -40°F possible historically. It is stark, quiet, and yours.
- 37° / 10°avg high / low
- 9.3 hdaylight, 7:19 am to 4:36 pm
- 0.5 inprecipitation
What’s open
- The park is open all year; the Badlands Loop Road and scenic byways stay open unless weather forces a temporary closure, and December through March is the window for brief closures after heavy snow or ice.
- Entrance is $30 per private vehicle, $25 per motorcycle, $15 per person on foot or bike, valid 7 days; there is no winter discount.
- Cedar Pass Campground is closed for the season; Sage Creek Campground stays open but is unplowed and only for winter camping with extreme-weather gear.
- The Ben Reifel Visitor Center keeps limited winter hours, and ranger programs contract from November through March.
How busy
The park's own table rates January crowds low; expect near-empty overlooks.
Best for
- solitude
- snow on the formations
What to do
- Walk the designated winter trails with microspikes; the boardwalk at Door Trail is the easy way to see the Badlands Wall in snow.
- Drive the Loop Road slowly for overlooks with nobody in them; check road status at the visitor center before entering.
- Base in Wall, where the motels and coffee stay open when the park's services shrink.
Pack
- Insulated boots and microspikes
- A windproof shell over real layers: wind chill is the hazard
- A printed map: GPS is unreliable near the park
Badlands National Park in February
February: still winter, an hour more daylight
Slightly milder than January, with highs near 40 and lows in the low teens, and sunset pushed past five. Ice storms and blizzards are still on the table, and the visitor center is still on winter hours.
- 40° / 13°avg high / low
- 10.5 hdaylight, 6:49 am to 5:18 pm
- 0.7 inprecipitation
What’s open
- Loop Road open unless a storm closes it briefly; call 605-433-5361 for real-time road status before a winter visit.
- Standard entrance fees apply year-round: $30 per vehicle for 7 days.
- Cedar Pass Campground closed; Sage Creek open, unplowed, no facilities. In-park operations stay contracted.
How busy
Low, per the park's seasonal table.
Best for
- quiet
- winter photography
What to do
- Short walks on the designated winter trails: Door Trail's boardwalk and the Cliff Shelf loop near the visitor center.
- Photograph the striped buttes in low winter light: sunrise is near 6:50, sunset about 5:20, so the good light is easy to catch.
- Warm up in Interior or Wall between drives; the gateway towns carry the park in winter.
Pack
- Traction for icy trail sections
- Thermos and hand warmers
- A backup plan for a closed road
Badlands National Park in March
March: winter letting go, one muddy trail at a time
Highs climb into the low 50s while nights stay around 20, and daylight jumps to nearly twelve hours. The park says March lingers in winter conditions: melting snow, muddy trails, and the last of the temporary road closures after a late storm.
- 51° / 21°avg high / low
- 11.8 hdaylight, 7:03 am to 6:54 pm
- 1.3 inprecipitation
What’s open
- Roads are typically passable but can close temporarily after heavy spring snow; March is the last month in the park's stated closure window.
- Entrance $30 per vehicle, 7 days. Ranger programs are still on the reduced November-through-March schedule.
- Cedar Pass Campground is not yet open for the season; Sage Creek remains the only in-park camping.
How busy
Low. The park is between seasons and the campground has not opened.
Best for
- empty trails
- melt-season light
What to do
- Hike the short trails as they dry: Door and Cliff Shelf first, and skip Notch Trail when it is wet, since the park calls its ledge walk treacherous in those conditions.
- Watch the melt work the formations from the Loop Road overlooks; runoff is what carves this place.
- Use the visitor center as the daily check on which sections are mud and which are open.
Pack
- Waterproof boots for mud
- Layers for a 30-degree day
- Sunglasses: the light off wet rock and snow is strong
Badlands National Park in April
April: the park wakes up, and so does the rain
Highs near 60, lows still around freezing, and precipitation more than doubling from March. Mornings and evenings drop to freezing while midday feels like spring. Visitor facilities ramp up: extended hours at the visitor center and ranger programs resuming.
- 59° / 30°avg high / low
- 13.4 hdaylight, 6:08 am to 7:30 pm
- 2.4 inprecipitation
What’s open
- Loop Road and byways open; temporary closures after a heavy spring snow are still possible early in the month.
- Entrance $30 per private vehicle, valid 7 days.
- Cedar Pass Campground reopens for the season in spring; the two old pages give different opening dates, so check the current season before counting on it. Sage Creek is open year-round.
- Ranger programs resume as the Ben Reifel Visitor Center moves to extended hours.
How busy
Moderate, per the park's table; spring break weeks are the busy ones.
Best for
- first hikes
- few people
What to do
- Take the first real hikes of the year: Notch Trail's log ladder and ledge walk on a dry day, Door Trail any day.
- Catch a returning ranger program at the visitor center.
- Camp at Cedar Pass once it opens, or at a gateway campground in Interior while the in-park loops are still filling in.
Pack
- Rain shell
- Layers: midday 50s to 70s, freezing at dawn
- Trail shoes that can take mud
Badlands National Park in May
May: the wettest month, and the last one before the heat
Highs reach the upper 60s, lows in the low 40s, and May is the wettest month of the year by NOAA's numbers, mostly as rain. Nearly fifteen hours of daylight. The prairie side of the park is at its greenest window before summer dries it out.
- 69° / 42°avg high / low
- 14.7 hdaylight, 5:25 am to 8:05 pm
- 3.2 inprecipitation
What’s open
- All roads open in typical conditions; spring storms can leave muddy trail sections.
- Entrance $30 per vehicle, 7 days; $15 per person for hikers and cyclists.
- Cedar Pass Campground and the Ben Reifel Visitor Center are on their spring schedule; the Fossil Preparation Lab does not open until the second week of June.
- Free night sky viewing at the Cedar Pass Amphitheater runs through Labor Day; the old pages disagree on whether it starts in May or on Memorial Day.
How busy
Moderate and building; Memorial Day weekend is the first real crowd of the year.
Best for
- long hikes before the heat
- green prairie
- night skies
What to do
- Hike the longer trails while it is still cool: Castle Trail at 10 miles and Medicine Root at 4 miles cross exposed prairie that is far friendlier now than in July.
- Evening ranger programs and night sky viewing at Cedar Pass, with a jacket.
- Eat in Wall or Interior after a full day; the park's own dining is limited.
Pack
- Rain shell for afternoon storms
- Sun protection: the sun is strong even in cloud
- A jacket for night sky programs
Badlands National Park in June
June: the longest days and the start of thunderstorm season
Highs near 80, lows in the low 50s, and more than fifteen hours of daylight. June is nearly as wet as May, but the park says it arrives as violent afternoon thunderstorms with hail rather than steady rain. Everything opens, and by mid-month the crowds arrive.
- 80° / 52°avg high / low
- 15.4 hdaylight, 5:07 am to 8:31 pm
- 3.1 inprecipitation
What’s open
- Loop Road and all trails open; summer storms can cause brief localized flooding and debris on the scenic drives.
- Entrance $30 per vehicle, $25 per motorcycle, $15 per person, 7 days.
- The Fossil Preparation Lab opens the second week of June, 9 a.m. to 4:30 p.m. daily, and ranger programs run multiple times a day.
- Cedar Pass Campground (96 sites) is open and fills weekends; Sage Creek is the primitive, quieter alternative.
How busy
High from mid-June on; both campgrounds fill on weekends and holidays.
Best for
- longest days
- fossil lab
- ranger programs
What to do
- Watch paleontologists work on Badlands fossils at the Fossil Preparation Lab in the Ben Reifel Visitor Center.
- Hike early and be off exposed terrain before the afternoon build-up; Notch Trail's ledge is not the place to meet a storm.
- Night sky viewing nightly at the Cedar Pass Amphitheater after the evening ranger program.
Pack
- Rain shell that can take hail
- Two liters of water per person for any hike
- Wide-brimmed hat: there is no shade on any trail
Badlands National Park in July
July: peak heat, peak crowds, and the darkest skies of the year
The hottest month: an average high of 88 with days that reach 85 to 101, nights cooling to the mid 50s and 60s. Every trail is fully exposed with zero shade. Storms arrive fast, bring lightning and hail, and clear within hours. The trade for all of it is reliable access, full operations, and the Astronomy Festival.
- 88° / 58°avg high / low
- 15.1 hdaylight, 5:21 am to 8:29 pm
- 2.1 inprecipitation
What’s open
- Everything operates: Loop Road, all trails, Cedar Pass Lodge, Cedar Pass Campground, the Ben Reifel Visitor Center and the Fossil Preparation Lab (9 a.m. to 4:30 p.m. daily).
- Entrance $30 per vehicle (7-day pass) or $15 per person on foot or bike. No timed entry, no reservations to enter.
- The Badlands Astronomy Festival runs July 17 to 19, 2026, free with park entry; free night sky viewing happens every evening at the Cedar Pass Amphitheater after the 8 p.m. ranger program.
- Backcountry hiking and camping across the prairie need no permit; the park asks that you come prepared for exposure and carry water.
How busy
Peak. The 4th of July weekend is the busiest stretch; Door, Window and Fossil Exhibit lots fill by mid-morning on weekends.
Best for
- astronomy festival
- every facility open
What to do
- Start hikes before 7 a.m. and be back at the car by 2 p.m.: Door (0.75 mi) and Notch (1.5 mi) early, Castle (10 mi) only if you carry a liter of water per hour.
- Arrive before 8 a.m. or drive to the South Unit, Sage Creek Wilderness Area, or overlooks away from Cedar Pass to skip the parking bottleneck.
- Stay for the night sky: the festival's telescopes on July 17 to 19, the ranger program every other night.
Pack
- 1 liter of water per hiking hour plus electrolytes
- SPF 50+, sunglasses, light long sleeves
- A light jacket for evening programs: nights drop 20 to 30 degrees
Badlands National Park in August
August: the same heat with a little less rain
Highs near 88 again, lows in the mid 50s, and slightly less precipitation than July, still delivered as afternoon thunderstorms with hail. Crowds hold at peak through Labor Day, then fall off a cliff.
- 88° / 55°avg high / low
- 14.0 hdaylight, 5:53 am to 7:55 pm
- 2.0 inprecipitation
What’s open
- All roads and trails open; afternoon storm season makes early-morning driving and hiking the park's own advice.
- Entrance $30 per vehicle, 7 days. Ranger programs and night sky viewing run nightly at Cedar Pass through Labor Day.
- Cedar Pass Lodge, both campgrounds and the Fossil Preparation Lab are all operating.
- Wall, 7 to 8 miles north of the northeast entrance, has more than 400 motel and hotel rooms when the in-park beds are full.
How busy
High through Labor Day; the campgrounds are full on weekends.
Best for
- dry-ish heat
- full itinerary
- night skies
What to do
- Dawn on the Cliff Shelf and Door boardwalks before the heat; the light on the wall is the reason to set an alarm.
- Camp at Sage Creek for a quieter, primitive night away from the Cedar Pass crowds.
- Make the last weeks of the fossil lab and the nightly astronomy program before the season winds down.
Pack
- A hydration plan: the park calls dehydration the primary summer emergency
- Hat, SPF 50+, long light sleeves
- A charged power bank: cell coverage is unreliable
Badlands National Park in September
September: the best balance the park offers
Highs in the upper 70s, lows in the mid 40s, and the lowest precipitation since spring. Crowds drop sharply after Labor Day and every road stays reliably open. The park's own guide picks September and October as the ideal window, and the numbers back it.
- 78° / 45°avg high / low
- 12.6 hdaylight, 6:27 am to 7:02 pm
- 1.5 inprecipitation
What’s open
- All roads open through fall. Entrance $30 per vehicle, 7 days.
- The Fossil Preparation Lab closes in September; the old pages disagree on the exact week, so check before planning around it. The Ben Reifel Visitor Center and ranger programs continue.
- Nightly night sky viewing at Cedar Pass ends with Labor Day.
- Backcountry camping is excellent: dry ground, cool nights, sparse company.
How busy
Moderate: busy over Labor Day weekend, then thin for the rest of the month.
Best for
- fewer crowds
- long hikes
- backcountry camping
What to do
- Hike the long ones now: Castle Trail's 10 miles and Medicine Root's 4 without July's heat.
- Backcountry camp on the prairie with no permit required; carry all your water.
- Add the Minuteman Missile visitor center off I-90 for a half-day that has nothing to do with rocks.
Pack
- Layers for 40s at dawn and 70s by noon
- Water: it is still dry, exposed country
- A headlamp: sunset is near 7 and falling
Badlands National Park in October
October: crisp hiking weather and the first chance of snow
Highs in the low 60s and lows around 30: the park's own words are crisp hiking weather. Snow is possible at higher elevations inside the park, daylight drops to about eleven hours, and the overlooks are quiet again.
- 63° / 30°avg high / low
- 11.1 hdaylight, 7:01 am to 6:08 pm
- 1.7 inprecipitation
What’s open
- Roads remain open; October snow is possible on the higher ground.
- Entrance $30 per vehicle, 7 days; $25 per motorcycle.
- Cedar Pass Campground closes for the season in fall; the two old pages disagree on the date, so confirm before an October camping trip. Sage Creek stays open.
- The Ben Reifel Visitor Center and ranger programs continue on a fall schedule; the White River Visitor Center in the South Unit keeps seasonal hours.
How busy
Moderate per the park's table, low in practice after the first frost.
Best for
- crisp hiking
- quiet
- fall light
What to do
- Walk Cliff Shelf and Door in the morning frost, when the formations hold their color best.
- Camp at Sage Creek for the last mild nights of the year.
- Detour to the South Unit's White River Visitor Center on a quiet weekday.
Pack
- Warm layers for frosty mornings
- Traction if the forecast mentions snow
- A thermos for the overlooks
Badlands National Park in November
November: the transition to winter
Highs near 50, lows around 20, and sunset before 4:30. The park says November is where fall turns to winter: precipitation drops, the campground is closed, and operations contract for the off-season.
- 49° / 20°avg high / low
- 9.7 hdaylight, 6:42 am to 4:26 pm
- 0.8 inprecipitation
What’s open
- Loop Road open unless weather forces a closure; the winter closure risk window begins in December.
- Entrance $30 per vehicle year-round, 7 days.
- Ranger programs and visitor center hours contract from November through March; Cedar Pass Campground is closed and Sage Creek is open and unplowed.
- Wall's motels and restaurants are the practical base once in-park services shrink.
How busy
Low, and it stays low through March.
Best for
- solitude
- low light
What to do
- Short, cold hikes on the Door boardwalk and the Cliff Shelf loop, done by early afternoon.
- Visit the National Grasslands Visitor Center in Wall for the prairie side of the story.
- Drive the Loop Road for empty overlooks and long, low light.
Pack
- Insulated layers and a windproof shell
- Headlamp: dark before 4:30
- The visitor center address written down: 25216 Ben Reifel Road, Interior, SD
Badlands National Park in December
December: the shortest days and the start of the snow
Highs in the upper 30s, lows around 11, and nine hours of daylight, the least of the year. The winter snow season starts here, with freezing rain, ice storms and blizzards all capable of closing roads for a day or two.
- 39° / 11°avg high / low
- 9.0 hdaylight, 7:15 am to 4:13 pm
- 0.5 inprecipitation
What’s open
- The park stays open, but December through March is the window for temporary road closures after heavy snow or ice; call 605-433-5361 for road status before driving in.
- Entrance $30 per private vehicle, 7 days.
- Cedar Pass Campground closed; Sage Creek open, unplowed, for extreme-weather winter camping only.
- Ben Reifel Visitor Center on limited winter hours.
How busy
Low. Weekdays can be entirely empty.
Best for
- snow
- solitude
What to do
- Winter hiking on designated trails with microspikes and warm layers.
- Snow-on-stripes photography from the Loop Road overlooks in the short midday light.
- Base in Wall for beds and food, and treat the park as a day trip in good weather.
Pack
- Full winter kit: the park calls wind chill a hazard-class condition
- Microspikes
- Chains or winter tires and a printed map
Which month is yours?
Questions people ask about Badlands’s seasons
What is the best month to visit Badlands National Park?
September and October: daytime highs of 63 to 78°F, low precipitation, crowds that drop after Labor Day, and every road reliably open. June through August works if you want full operations and can handle 80 to 88°F afternoons with no shade and afternoon thunderstorms.
What is Badlands National Park like in March?
Still winter, slowly letting go. NOAA normals put March at a 51°F high and 21°F low, with melting snow, muddy trail sections, and the chance of a brief road closure after a late storm. Crowds are low, ranger programs are on the reduced winter schedule, and Cedar Pass Campground has not opened. Door Trail's boardwalk and the Cliff Shelf loop are the reliable walks.
When does it snow in Badlands National Park, and how much?
The snow season is December through February, with the park reporting 12 to 24 inches across the season, unevenly distributed. October snow is possible at higher elevations, and March can still hold melting snow. Ice storms and blizzards can close roads temporarily from December through March.
Is Badlands National Park open in winter?
Yes. The park is open all year at the standard entrance fee of $30 per vehicle. Individual roads may close temporarily during and after heavy snow from December through March, Cedar Pass Campground closes for the season, Sage Creek Campground stays open but unplowed, and the Ben Reifel Visitor Center keeps limited winter hours. Call 605-433-5361 for road status before a winter visit.
How hot does it get in July?
The NOAA average July high is 88°F, and the park's July guide reports daily highs of 85 to 101°F with nights cooling to 54 to 65°F. Every trail is fully exposed with zero shade, so the park advises starting hikes before 7 a.m., carrying a liter of water per hiking hour, and being off exposed terrain by early afternoon.
Can I use GPS to get to Badlands National Park?
The park advises against it: GPS and digital navigation are unreliable near Badlands. Use the official visitor center address, 25216 Ben Reifel Road, Interior, SD 57750, near I-90 exit 131, and carry a printed map as backup.
Every month on this page is built from NOAA 1991-2020 normals for the Porcupine 11 N station, the sun's position, and the park's published fees and season dates, not from a visit. No first-person field notes are included. Temperatures: Porcupine 11 N, Sd Us, 2,820 ft (NOAA 1991-2020 normals, station USC00396736).
