Yellowstone National Park (WY)
August
Weather in Yellowstone National Park, Wyoming for August 2026
Your guide to Yellowstone National Park weather in August - trends and predictions
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 2026, no snow is expected at the beginning of the month.Expect cooler weather in first days of August 2026 in Yellowstone National Park with the forecast suggesting a temperature of 27.3 °C, lower than the historical average.
In general, the average temperature in Yellowstone National Park at the beginning of August is 25.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.1 °C by the end of August.
Yellowstone National Park experiences moderate rainfall in August, with an average of 7 rainy days and a total precipitation of 36.7 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
More
22
Dry days
7
Rainy days
2
Snow days
22°/8°
Temperatures
22 km/h
Avg max wind
44 %
Avg humidity
Yellowstone National Park Weather August
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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
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Aug. 1 |  Sunny | 30° /12° | 0 mm | 0 cm | |
| Aug. 2 | Sunny | 28° /11° | 0 mm | 0 cm | |
| Aug. 3 |  Patchy rain possible | 24° /10° | 0 mm | 0 cm | |
| Aug. 4 |  Thundery outbreaks possible | 24° /11° | 0.1 mm | 0 cm | |
| Aug. 5 |  Overcast | 23° /8° | 0 mm | 0 cm | |
| Aug. 6 | Patchy rain possible | 25° /9° | 0 mm | 0 cm | |
| Aug. 7 |  Partly cloudy | 22° /8° | 0 mm | 0 cm | |
| Aug. 8 | Overcast | 19° /6° | 0 mm | 0 cm | |
| Aug. 9 |  Patchy light rain with thunder | 20° /5° | 0.8 mm | 0 cm | |
| Aug. 10 |  Moderate rain at times | 20° /6° | 2.6 mm | 0 cm | |
| Aug. 11 | Partly cloudy | 22° /7° | 0 mm | 0 cm | |
| Aug. 12 | Patchy rain possible | 23° /8° | 0 mm | 0 cm | |
| Aug. 13 | Patchy light rain with thunder | 22° /8° | 1.8 mm | 0 cm | |
| Aug. 14 | Patchy light rain with thunder | 20° /7° | 0.4 mm | 0 cm | |
| Aug. 15 | Partly cloudy | 23° /6° | 0.8 mm | 0 cm | |
| Aug. 16 | Patchy rain possible | 22° /7° | 0 mm | 0 cm | |
| Aug. 17 | Sunny | 23° /7° | 0 mm | 0 cm | |
| Aug. 18 | Patchy rain possible | 24° /8° | 1.8 mm | 0 cm | |
| Aug. 19 |  Moderate or heavy rain with thunder | 24° /8° | 5.6 mm | 0 cm | |
| Aug. 20 | Thundery outbreaks possible | 24° /8° | 0.2 mm | 0 cm | |
| Aug. 21 | Patchy rain possible | 23° /9° | 0.2 mm | 0 cm | |
| Aug. 22 | Sunny | 24° /7° | 0 mm | 0 cm | |
| Aug. 23 |  Patchy light drizzle | 23° /7° | 2.4 mm | 0 cm | |
| Aug. 24 | Partly cloudy | 22° /7° | 0 mm | 0 cm | |
| Aug. 25 | Patchy rain possible | 19° /6° | 1.3 mm | 0.3 cm | |
| Aug. 26 | Patchy light rain with thunder | 18° /6° | 1.2 mm | 0.4 cm | |
| Aug. 27 | Sunny | 18° /7° | 3.5 mm | 0 cm | |
| Aug. 28 | Sunny | 16° /7° | 13.9 mm | 0 cm | |
| Aug. 29 | Sunny | 19° /4° | 0 mm | 0 cm | |
| Aug. 30 | Sunny | 21° /5° | 0 mm | 0 cm | |
| Aug. 31 | Sunny | 23° /7° | 0 mm | 0 cm | |
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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 8°. 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 36.7 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 2026?
Yellowstone National Park experiences an average snowfall of 0.735 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 2026
Track daily snowfall levels and discover Yellowstone National Park’s snowy potential this August ❄️
On average, Yellowstone National Park sees 2 snowy days during August, with approximately 0.7 cm of total snowfall.
August rainfall patterns in Yellowstone National Park
Explore the daily rainfall trends and prepare for Yellowstone National Parks August weather 💧
Typically, Yellowstone National Park has 7 rainy days in August with a total of 36.7 mm of rainfall.
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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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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