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Grand Teton National Park (WY)
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Weather in Grand Teton National Park, Wyoming for May 2026

Your guide to Grand Teton National Park weather in May - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Grand Teton National Park usually enjoys a light touch of snow in May.

    • Temperatures

  • In general, the average temperature in Grand Teton National Park at the beginning of May is 12.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19 °F by the end of May.

    • Rain 🌧️

  • Grand Teton National Park experiences moderate rainfall in May, with an average of 9 rainy days and a total precipitation of 60.2 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
19
Dry days
Average rainy days
9
Rainy days
Average snowy days
3
Snow days
Average temperatures
14°/0°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Grand Teton National Park Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
10°
2
Overcast
12°
3
Partly cloudy
14°
4
Partly cloudy
17°
5
Moderate or heavy rain shower
11°
6
Overcast
10°
7
Overcast
14°
8
Heavy rain at times
16°
9
Sunny
18°
10
Partly cloudy
20°
11
Cloudy
15°
12
Partly cloudy
17°
13
Heavy rain at times
11°
14
Light freezing rain
6°
15
Patchy rain possible
6°
16
Patchy rain possible
8°
17
Moderate rain at times
12°
18
Moderate or heavy rain shower
5°
19
Cloudy
6°
20
Heavy rain at times
6°
21
Light freezing rain
10°
22
Patchy rain possible
14°
23
Cloudy
14°
24
Overcast
16°
25
Mist
16°
26
Thundery outbreaks possible
17°
27
Patchy light rain with thunder
16°
28
Thundery outbreaks possible
19°
29
Fog
21°
30
Sunny
21°
31
Sunny
23°

Temperatures trend during May in Grand Teton National Park

See the weather trend as well as the moving average line

May weather in Grand Teton National Park day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
May 1 Patchy rain possible
Patchy rain possible
 10° /-7° 0.1 mm 0 cm
May 2 Overcast
Overcast
 12° /-6° 0 mm 0 cm
May 3 Partly cloudy
Partly cloudy
 14° /-2° 0 mm 0 cm
May 4 Partly cloudy
Partly cloudy
 17° /-1° 0 mm 0 cm
May 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /-1° 7.4 mm 0 cm
May 6 Overcast
Overcast
 10° /-1° 0 mm 0 cm
May 7 Overcast
Overcast
 14° /-1° 0 mm 0 cm
May 8 Heavy rain at times
Heavy rain at times
 16° /-1° 1.3 mm 0 cm
May 9 Sunny
Sunny
 18° /0° 0 mm 0 cm
May 10 Partly cloudy
Partly cloudy
 20° /0° 0 mm 0 cm
May 11 Cloudy
Cloudy
 15° /2° 0 mm 0 cm
May 12 Partly cloudy
Partly cloudy
 17° /1° 0 mm 0 cm
May 13 Heavy rain at times
Heavy rain at times
 11° /0° 8.9 mm 2.8 cm
May 14 Light freezing rain
Light freezing rain
 6° /0° 7.6 mm 3.2 cm
May 15 Patchy rain possible
Patchy rain possible
 6° /0° 2.2 mm 0 cm
May 16 Patchy rain possible
Patchy rain possible
 8° /-2° 1 mm 0 cm
May 17 Moderate rain at times
Moderate rain at times
 12° /0° 2.6 mm 0 cm
May 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /0° 13.5 mm 0 cm
May 19 Cloudy
Cloudy
 6° /-1° 0.3 mm 0 cm
May 20 Heavy rain at times
Heavy rain at times
 6° /-2° 4 mm 0 cm
May 21 Light freezing rain
Light freezing rain
 10° /-2° 3.6 mm 1.7 cm
May 22 Patchy rain possible
Patchy rain possible
 14° /-1° 0.2 mm 0 cm
May 23 Cloudy
Cloudy
 14° /-1° 0 mm 0 cm
May 24 Overcast
Overcast
 16° /3° 0 mm 0 cm
May 25 Mist
Mist
 16° /1° 0 mm 0 cm
May 26 Thundery outbreaks possible
Thundery outbreaks possible
 17° /2° 0 mm 0 cm
May 27 Patchy light rain with thunder
Patchy light rain with thunder
 16° /5° 7.5 mm 0 cm
May 28 Thundery outbreaks possible
Thundery outbreaks possible
 19° /6° 0 mm 0 cm
May 29 Fog
Fog
 21° /2° 0 mm 0 cm
May 30 Sunny
Sunny
 21° /6° 0 mm 0 cm
May 31 Sunny
Sunny
 23° /6° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Grand Teton National Park in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grand Teton National Park forecast closer to your planned date for the most up-to-date weather information.
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Grand Teton National Park in May - FAQ

What are the expected maximum and minimum temperatures in Grand Teton National Park during May?
Prepare for cooler days with highs just around 14° and colder nights, dipping below 0°.
How much rainfall should be expected in Grand Teton National Park during May?
Moderate rainfall is anticipated in Grand Teton National Park during May, with a total of 60.2 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
Will it snow in Grand Teton National Park in May 2026?
Grand Teton National Park experiences an average snowfall of 7.7 cm during May, occurring over 3 days.
What are the typical wind conditions in Grand Teton National Park during May?
The average wind speed in Grand Teton National Park during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

Grand Teton National Park snow forecast May 2026

Track daily snowfall levels and discover Grand Teton National Park’s snowy potential this May ❄️

May rainfall patterns in Grand Teton National Park

Explore the daily rainfall trends and prepare for Grand Teton National Parks May weather 💧

UV exposure in Grand Teton National Park during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Location coordinates Where is Grand Teton National Park?

Get accurate weather forecasts for Grand Teton National Park, located at latitude 43.79 and longitude -110.682. Stay updated with localized weather information tailored for Grand Teton National Park.

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