Yellowstone County (Billings)
August
Weather in Yellowstone County, Montana for August 2025
Your guide to Yellowstone County weather in August - trends and predictions
Until now, August 2025 in Yellowstone County is slightly cooler than the historical average by -0.6 °F.
The forecast for the coming days of August 2025 predicts a temperature of 28 °F , which is warmer than usual.
In general, the average temperature in Yellowstone County at the beginning of August is 31.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.1 °F by the end of August.
With an average of 5 rainy days, Yellowstone County experiences minimal rainfall in August.
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Temperatures
Rain 🌧️
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26
Dry days
5
Rainy days
0
Snow days
30°/16°
Temperatures
21 km/h
Avg max wind
38 %
Avg humidity
Yellowstone County Weather August
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Temperatures trend during August in Yellowstone County
See the weather trend as well as the moving average line
August weather in Yellowstone County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Sunny | 33° /17° | 0 mm | 8 | |
| Aug. 2 |  Partly cloudy | 35° /18° | 0 mm | 9 | |
| Aug. 3 | Sunny | 34° /17° | 0 mm | 9 | |
| Aug. 4 |  Moderate or heavy rain shower | 33° /18° | 3 mm | 7 | |
| Aug. 5 | Sunny | 30° /14° | 0 mm | 8 | |
| Aug. 6 |  Cloudy | 33° /15° | 0 mm | 8 | |
| Aug. 7 |  Heavy rain at times | 25° /15° | 1.6 mm | 6 | |
| Aug. 8 |  Overcast | 22° /12° | 4.2 mm | 5 | |
| Aug. 9 | Partly cloudy | 27° /11° | 0 mm | 7 | |
| Aug. 10 | Partly cloudy | 28° /12° | 0 mm | 7 | |
| Aug. 11 |  Patchy rain possible | 29° /14° | 0.4 mm | 7 | |
| Aug. 12 | Partly cloudy | 32° /14° | 0.3 mm | 8 | |
| Aug. 13 | Patchy rain possible | 33° /15° | 0.1 mm | 8 | |
| Aug. 14 | Heavy rain at times | 31° /14° | 0.6 mm | 7 | |
| Aug. 15 | Sunny | 31° /15° | 0 mm | 8 | |
| Aug. 16 | Sunny | 33° /15° | 0.2 mm | 9 | |
| Aug. 17 | Sunny | 32° /15° | 0 mm | 8 | |
| Aug. 18 | Moderate rain at times | 35° /17° | 0.2 mm | 8 | |
| Aug. 19 | Patchy rain possible | 36° /16° | 0.2 mm | 8 | |
| Aug. 20 | Patchy rain possible | 34° /18° | 0.2 mm | 7 | |
| Aug. 21 | Patchy rain possible | 30° /17° | 0.2 mm | 7 | |
| Aug. 22 | Sunny | 26° /15° | 0 mm | 7 | |
| Aug. 23 | Cloudy | 31° /13° | 0 mm | 8 | |
| Aug. 24 | Cloudy | 31° /14° | 0 mm | 7 | |
| Aug. 25 | Sunny | 27° /12° | 0 mm | 7 | |
| Aug. 26 | Heavy rain at times | 27° /13° | 1.8 mm | 6 | |
| Aug. 27 | Partly cloudy | 29° /12° | 0 mm | 7 | |
| Aug. 28 | Heavy rain at times | 24° /14° | 1.5 mm | 5 | |
| Aug. 29 |  Moderate rain | 18° /15° | 13.6 mm | 0.9 | |
| Aug. 30 | Overcast | 22° /14° | 0 mm | 1.7 | |
| Aug. 31 | Sunny | 29° /9° | 0 mm | 1.6 | |
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Important Notice
Our weather forecast for Yellowstone County 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 County forecast closer to your planned date for the most up-to-date weather information.
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Yellowstone County in August - FAQ
What are the expected maximum and minimum temperatures in Yellowstone County during August?
Expect warm days with temperatures around 30°, cooling to mild conditions of 16° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Yellowstone County during August?
Expect minimal rainfall in Yellowstone County during August, with a total of 19.1 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Yellowstone County during August?
The average wind speed in Yellowstone County during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Yellowstone County
Explore the daily rainfall trends and prepare for Yellowstone Countys August weather 💧
UV exposure in Yellowstone County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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