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Yellowstone National Park (WY)
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Yellowstone National Park (WY)
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Weather in Yellowstone National Park, Wyoming for August 2025

Your guide to Yellowstone National Park weather in August - trends and predictions

    Official Weather Alert ⚠️

  • Red Flag Warning - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 2 snowy days, Yellowstone National Park usually enjoys a light touch of snow in August.
    According to Yellowstone National Park snow forecast for August 2025, no snow is expected in the next 2 weeks.

    • Temperatures

  • The forecast for the next days in Yellowstone National Park predicts temperatures to be around 24 °F, close to the historical average.

  • In general, the average temperature in Yellowstone National Park at the beginning of August is 23.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19 °F by the end of August.

    • Rain 🌧️

  • Yellowstone National Park experiences moderate rainfall in August, with an average of 7 rainy days and a total precipitation of 38.3 mm.

    • More

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

Average dry days
22
Dry days
Average rainy days
7
Rainy days
Average snowy days
2
Snow days
Average temperatures
22°/7°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
44 %
Avg humidity

Yellowstone National Park Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Weather Alert Sunny
22°
2
Sunny
24°
3
Sunny
21°
4
Partly cloudy
24°
5
Patchy rain possible
23°
6
Sunny
25°
7
Sunny
25°
8
Partly cloudy
22°
9
Patchy rain possible
18°
10
Sunny
21°
11
Sunny
26°
12
Sunny
28°
13
Sunny
27°
14
Sunny
27°
15
Partly cloudy
22°
16
Patchy rain possible
21°
17
Sunny
24°
18
Patchy rain possible
24°
19
Moderate or heavy rain with thunder
22°
20
Thundery outbreaks possible
24°
21
Patchy rain possible
22°
22
Sunny
24°
23
Patchy light drizzle
21°
24
Partly cloudy
21°
25
Patchy rain possible
16°
26
Patchy light rain with thunder
13°
27
Sunny
21°
28
Sunny
16°
29
Sunny
19°
30
Sunny
23°
31
Sunny
25°

Temperatures trend during August in Yellowstone National Park

See the weather trend as well as the moving average line

August weather in Yellowstone National Park day by day

Click on a date for more information
July September
Date Weather Temperatures Rain Snow More
Aug. 1 Sunny
Sunny
 22° /7° 0 mm 0 cm
Aug. 2 Sunny
Sunny
 24° /7° 0 mm 0 cm
Aug. 3 Sunny
Sunny
 21° /8° 0 mm 0 cm
Aug. 4 Partly cloudy
Partly cloudy
 24° /7° 0 mm 0 cm
Aug. 5 Patchy rain possible
Patchy rain possible
 23° /6° 0.5 mm 0 cm
Aug. 6 Sunny
Sunny
 25° /7° 0 mm 0 cm
Aug. 7 Sunny
Sunny
 25° /8° 0 mm 0 cm
Aug. 8 Partly cloudy
Partly cloudy
 22° /8° 0.1 mm 0 cm
Aug. 9 Patchy rain possible
Patchy rain possible
 18° /10° 1.5 mm 0 cm
Aug. 10 Sunny
Sunny
 21° /5° 0 mm 0 cm
Aug. 11 Sunny
Sunny
 26° /5° 0 mm 0 cm
Aug. 12 Sunny
Sunny
 28° /9° 0 mm 0 cm
Aug. 13 Sunny
Sunny
 27° /10° 0 mm 0 cm
Aug. 14 Sunny
Sunny
 27° /10° 0.1 mm 0 cm
Aug. 15 Partly cloudy
Partly cloudy
 22° /4° 1.7 mm 0 cm
Aug. 16 Patchy rain possible
Patchy rain possible
 21° /6° 0.1 mm 0 cm
Aug. 17 Sunny
Sunny
 24° /7° 0 mm 0 cm
Aug. 18 Patchy rain possible
Patchy rain possible
 24° /8° 3.6 mm 0 cm
Aug. 19 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 22° /8° 11.2 mm 0 cm
Aug. 20 Thundery outbreaks possible
Thundery outbreaks possible
 24° /8° 0.2 mm 0 cm
Aug. 21 Patchy rain possible
Patchy rain possible
 22° /8° 0.5 mm 0 cm
Aug. 22 Sunny
Sunny
 24° /6° 0 mm 0 cm
Aug. 23 Patchy light drizzle
Patchy light drizzle
 21° /8° 4.8 mm 0 cm
Aug. 24 Partly cloudy
Partly cloudy
 21° /6° 0 mm 0 cm
Aug. 25 Patchy rain possible
Patchy rain possible
 16° /4° 2.5 mm 0.7 cm
Aug. 26 Patchy light rain with thunder
Patchy light rain with thunder
 13° /3° 2.4 mm 0.8 cm
Aug. 27 Sunny
Sunny
 21° /4° 0 mm 0 cm
Aug. 28 Sunny
Sunny
 16° /5° 0 mm 0 cm
Aug. 29 Sunny
Sunny
 19° /1° 0 mm 0 cm
Aug. 30 Sunny
Sunny
 23° /4° 0 mm 0 cm
Aug. 31 Sunny
Sunny
 25° /7° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Yellowstone National Park in August 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 Yellowstone National Park forecast closer to your planned date for the most up-to-date weather information.
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Yellowstone National Park in August - FAQ

What are the expected maximum and minimum temperatures in Yellowstone National Park during August?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Yellowstone National Park during August?
In August, Yellowstone National Park can expect light to moderate rainfall, totaling 38.3 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Yellowstone National Park in August 2025?
Yellowstone National Park experiences an average snowfall of 1.47 cm during August, occurring over 2 days.
What are the typical wind conditions in Yellowstone National Park during August?
The average wind speed in Yellowstone National Park during August is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

Yellowstone National Park snow forecast August 2025

Track daily snowfall levels and discover Yellowstone National Park’s snowy potential this August ❄️

August rainfall patterns in Yellowstone National Park

Explore the daily rainfall trends and prepare for Yellowstone National Parks August weather 💧

UV exposure in Yellowstone National Park during August

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

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Location coordinates Where is Yellowstone National Park?

Get accurate weather forecasts for Yellowstone National Park, located at latitude 44.428 and longitude -110.588. Stay updated with localized weather information tailored for Yellowstone National Park.

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