What is the weather like in Glacier National Park in May?

May averages a high of 460F and a low of 310F, with a 38% chance of rain or snow on an average day, per Open-Meteo climate data. Expect cool mornings and variable afternoon weather. Bring waterproof layers and microspikes for icy patches. Per weather.gov, short snow events remain possible at higher elevations.

What roads are open in May?

Lower park roads and valley approaches are usually plowed by mid-May. The Going-to-the-Sun Road commonly remains closed over Logan Pass through May, with full vehicle access typically in late June or July, per NPS.gov. Bicycles may use cleared sections earlier. Two Medicine Road will have spring closures in 2026 due to a utility project.

What should I pack for a May visit?

Pack layered clothing: base, midlayer, insulating puffy, and a waterproof shell. Average May highs are 460F and lows 310F, so cold-weather gear is necessary for high trails. Include bear spray, binoculars, microspikes, and a 200L daypack for short hikes or 350L for longer outings. NPS.gov advises bear spray for wildlife country.

Are there bears in May?

Yes. Both grizzly and black bears are active in May. NPSpecies and park reports confirm breeding season and increased movement near meadows and early greenups. Maintain 100 yards from bears and wolves and 25 yards from other wildlife. Store food in bear-proof lockers and follow NPS.gov food storage rules.

What is the weather like in Glacier National Park in May?

May averages a high of 46u00b0F and a low of 31u00b0F, with a 38% chance of rain or snow on an average day, per Open-Meteo climate data. Expect cool mornings and variable afternoon weather. Bring waterproof layers and microspikes for icy patches. Per weather.gov, short snow events remain possible at higher elevations.

What roads are open in May?

Lower park roads and valley approaches are usually plowed by mid-May. The Going-to-the-Sun Road commonly remains closed over Logan Pass through May, with full vehicle access typically in late June or July, per NPS.gov. Bicycles may use cleared sections earlier. Two Medicine Road will have spring closures in 2026 due to a utility project.

What should I pack for a May visit?

Pack layered clothing: base, midlayer, insulating puffy, and a waterproof shell. Average May highs are 46u00b0F and lows 31u00b0F, so cold-weather gear is necessary for high trails. Include bear spray, binoculars, microspikes, and a 20u201330L daypack for short hikes or 35u201350L for longer outings. NPS.gov advises bear spray for wildlife country.

Are there bears in May?

Yes. Both grizzly and black bears are active in May. NPSpecies and park reports confirm breeding season and increased movement near meadows and early greenups. Maintain 100 yards from bears and wolves and 25 yards from other wildlife. Store food in bear-proof lockers and follow NPS.gov food storage rules.

Snapshot Glacier National Park covers 1,013,322 acres, records 2,893,996 annual visitors, and lists 13 front-country campgrounds per park data and NPD figures. Park area 1,013,322 acres Annual visitors 2,893,996 (NPS IRMA) Entry fee (2026) $35 per vehicle, $20 per person, $30 motorcycle; annual park pass $70 per NPS.gov Non-resident surcharge $100 per non-U.S. resident (age 16+) on top of standard fee in 2026 Campgrounds 13 total front-country campgrounds (park records) Visitor centers Apgar, St

Best time: May averages 46u00b0F high and 31u00b0F low; expect snowpack melt, strong waterfalls, and partial Going-to-the-Sun Road access with lower trails open, per Open-Meteo and NPS.gov. u00b7 Avoid: Early winter months (Novemberu2013February) have limited access Low u2014 few visitors, minimal wait times Moderate u2014 noticeable crowds, short waits High u2014 busy, expect parking and trail congestion Very High u2014 peak season, reservations essential Closed u2014 area inaccessible or seasonally closed Jan Very Low Avg high 2

Snapshot May average highs 46u00b0F and lows 31u00b0F; expect cooler conditions at Logan Pass and wetter valley days, per Open-Meteo and NPS.gov. Clothing Layers Base layer (moisture-wicking) Midlayer fleece Insulating puffy jacket (down or synthetic) Waterproof breathable shell Hiking pants and warm hat Glovesu2014lightweight and insulating Wildlife Viewing Kit Binoculars (8x42 or similar) Spotting scope or telephoto lens Field guide or app Bear spray (read label for range and deployment)u2014allowed and recommended per NPS.gov Footwear & Traction Sturdy hiking shoes or boots Microspikes for icy patches Camp shoes or sandals Daypack Items 20u201330L daypack for half-day hikes; 35u201350L if you carry extra layers or camera gear Water (2u20133 liters for full-day outings) Snacks with high calories Map and compass or GPS device Safety & First Aid First-aid kit Headlamp with extra batteries Emergency bivy or warm blanket Whistle and signaling mirror Apgar Campground Sites 194 Fee $30 per night (peak season), $20 spring/fall per NPS campground records as of early 2026 Season Open year-round; peak season May 1u2013September 29, 2026 Tent RV (25 sites fit RVs up to 40 ft) Walk-to hiker/biker sites Amenities: Flush toilets, Showers (seasonal), Bear-proof food storage, Trash and recycling Reservations open up to six months in advance Reserve a Site Apgar Campground has 194 sites and is frequently the first campground available in May. Per NPS.gov, Apgar operates year-round with peak fees starting May 1, 2026. The site mix suits tents and many RVs. If you need May nights, book early for holiday weekends. Two Medicine Campground is closed in 2026 for utility work, so plan alternatives and check NPS.gov. How Busy Is the Park?

Our analysis shows Glacieru2019s Crowding Index at 2855.9 visitors per 1,000 acres, and May sits in the moderate crowd band compared to Julyu2019s peak, per NPD crowding data. Annual visitor totals reach 2,893,996, with July the busiest month, according to NPS IRMA statistics. May sees fewer vehicles, but holiday weekends produce sharp spikes. Park data and visitor reports indicate parking fills quickly at Apgar, Lake McDonald, and St. Mary on Memorial Day weekend. To reduce parking stress, consider wee

Maintain 100 yards from bears and wolves and 25 yards from other wildlife; keeping those distances reduces conflict risk in May when species like the grizzly bear (Ursus arctos horribilis) are active on low-elevation meadows, per NPS.gov and NPSpecies records. Carry bear spray and know how to use it. Per NPS.gov, bear spray deployment training and storage guidelines are mandatory advice for backcountry and front-country travel. Grizzly bears are listed as Threatened under the ESA; take distance

What is the weather like in Glacier National Park in May? May averages a high of 46u00b0F and a low of 31u00b0F, with a 38% chance of rain or snow on an average day, per Open-Meteo climate data. Expect cool mornings and variable afternoon weather. Bring waterproof layers and microspikes for icy patches. Per weather.gov, short snow events remain possible at higher elevations. What roads are open in May? Lower park roads and valley approaches are usually plowed by mid-May. The Going-to-the-Sun Road common

Glacier National Park in May: Roads, Trails, Wildlife

By March 23, 2026March 23, 2026

Key Takeaways for Glacier National Park in May

Expect partial access and active wildlife in May; park records show 13 campgrounds total, and Lake McDonald Lodge reopens May 15, 2026.

Road access: The Going-to-the-Sun Road usually remains closed over Logan Pass through May. Plan valley routes and bicycle options, per NPS.gov.
Crowds: May sees moderate crowds versus July. Annual visitation is 2,893,996, with July the peak month, per NPS IRMA.
Wildlife: Bears and elk are active during green-up. Maintain 100 yards from bears and wolves and 25 yards from other wildlife.
Weather: Average May highs 46°F and lows 31°F. Bring four-layer systems and microspikes for icy trails, per Open-Meteo.
Reservations: Vehicle reservations are not required statewide in 2026, but Recreation.gov handles backcountry permits and shuttle tickets. Expect high demand for holiday weekends.
Camping: Apgar and other valley campgrounds open in May; Two Medicine Campground is closed for 2026 utility work. Check NPS.gov for alternatives.
Timing tip: Aim for weekdays and morning starts to avoid parking pressure at Apgar, Lake McDonald, and St. Mary.
Safety: Carry bear spray and use bear-proof storage; adhere to NPS.gov safety guidance.

Based on these facts, we recommend booking lodging and any boat or guided activities early, carrying flexible plans, and prioritizing lower-elevation hikes in May. These actions improve the odds of a smooth trip and safer wildlife encounters.

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Finalize plans now: check vehicle reservation windows, campsite availability, and lodge opening dates for your May dates. For reservations and the latest alerts, visit official pages and remember to check nps.gov for current conditions.

Reserve shuttles, backcountry permits, and campsites on Recreation.gov where applicable.

Visit NPS Glacier Page