Late spring · Weather & things to do
Grand Teton National Park in May
Grand Teton National Park warms up: highs climb to 54°F (12°C), from 41°F in April, with lows of 34°F (1°C) and about 2.8 in (72 mm) of rain.
Our comfort score puts it mid-table at 66/100, 5th of 12.
- Avg high
- 54°F (12°C)
- Avg low
- 34°F (1°C)
- Rain
- 2.8 in (72 mm)
- Humidity
- 74%
- Cloud cover
- 69%
- Daylight
- ~14 h 32 min
- Comfort score
- 66/100 · Good
What May feels like
Afternoons only reach about 54°F (12°C), so plan on a warm jacket.
After dark, temperatures fall to about 34°F (1°C).
Some rain is likely, about 2.8 in (72 mm) in the month, so pack for a shower or two.
Plan around May
May sits mid-table; the best months are June – September.
- The year's biggest warm-up: highs jump 7°C (13°F) from April.
- Comfort improves from 44/100 in April to 66/100.
- Our Glacier to Yellowstone route recommends Jun – Sep, so May falls outside its suggested window.
- Our Grand Teton, Jackson & Yellowstone route recommends Mid-Dec – Mar, so May falls outside its suggested window.
What to pack for May
- Insulated jackethighs only 54°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Grand Teton National Park in May
May is good outdoor weather here, so these picks lean toward the open air.
Grand Teton
At 13,775 feet, the highest peak of the Teton Range, rising about 7,000 feet straight from the valley floor.
Why now May scores 66/100 for comfort, good conditions for being outside.
Teton Park Road winter trail
The park road from Taggart Lake Trailhead to Signal Mountain closes to cars in winter and is groomed for skiing and snowshoeing.
Why now Highs near 54°F and 2.8 in of monthly rain make this an easy outdoor pick.
Million Dollar Cowboy Bar
Jackson's town-square saloon since 1937, with saddle barstools and live country music.
Why now One to do outside while the weather is on your side.
Mural Room
Jackson Lake Lodge's main dining room with 60-foot windows facing the range.
Signal Mountain Summit Road
Winding road to an overlook above Jackson Lake and the whole range.
Snake River Overlook
Pullout on US-89 above a bend of the Snake River, where Ansel Adams photographed the Tetons in 1942.
Nearby in May
- Jackson in May~22 mi · highs 59°F, 2.5 in rain · 3°C (5°F) warmer by day, about as wet
- Yellowstone National Park in May~44 mi · highs 49°F, 3.2 in rain · 3°C (5°F) cooler by day, about as wet
- Yellowstone in May~57 mi · highs 49°F, 3.2 in rain · 3°C (5°F) cooler by day, about as wet
- Salt Lake City in May~218 mi · highs 70°F, 2.3 in rain · 9°C (16°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~2,462 m to Grand Teton National Park's ~2,122 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Grand Teton National Park in May: quick answers
Is May a good time to visit Grand Teton National Park?
It's middling, scoring 66/100. The best months are June – September, at up to 97. Expect highs of 54°F (12°C) and 2.8 in (72 mm) of rain. Our Glacier to Yellowstone route recommends Jun – Sep, so May is outside its suggested window.
How cold is Grand Teton National Park in May?
Average highs are 54°F (12°C) and average lows 34°F (1°C), making it the 5th-warmest month by daytime highs.
Does it rain a lot in Grand Teton National Park in May?
Some: about 2.8 in (72 mm) of rain falls across May on average, the 6th-driest month of the year. The annual total is about 30.9 in (785 mm).
What should I pack for Grand Teton National Park in May?
Bring insulated jacket (highs only 54°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
More on Grand Teton National Park
Planning Grand Teton National Park in May?
Share this May plan with your group, poll everyone on dates and keep the packing list in one place.