Stillwater (OK)
August
Weather in Stillwater, Oklahoma for August 2026
Your guide to Stillwater weather in August - trends and predictions
So far, August 2026 in Stillwater is slightly warmer than the historical average by 1.8 °F.
The forecast for the coming days of August 2026 predicts a temperature of 41.7 °F , which is warmer than usual.
In general, the average temperature in Stillwater at the beginning of August is 35.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 31.1 °F by the end of August.
The climate of Stillwater in August is notably wet, with an average of 13 rainy days, and a total of 142 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
13
Rainy days
0
Snow days
33°/22°
Temperatures
21 km/h
Avg max wind
58 %
Avg humidity
Stillwater Weather August
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Temperatures trend during August in Stillwater
See the weather trend as well as the moving average line
August weather in Stillwater day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Cloudy | 34° /22° | 0 mm | 9 | |
| Aug. 2 | Cloudy | 34° /21° | 0.2 mm | 9 | |
| Aug. 3 |  Sunny | 33° /20° | 1.4 mm | 9 | |
| Aug. 4 | Sunny | 35° /21° | 4.9 mm | 9 | |
| Aug. 5 | Sunny | 38° /22° | 0.1 mm | 10 | |
| Aug. 6 | Sunny | 38° /24° | 0 mm | 10 | |
| Aug. 7 | Sunny | 37° /23° | 0.1 mm | 10 | |
| Aug. 8 | Sunny | 38° /23° | 0.1 mm | 10 | |
| Aug. 9 | Sunny | 36° /23° | 0.1 mm | 9 | |
| Aug. 10 |  Moderate or heavy rain shower | 34° /21° | 2 mm | 8 | |
| Aug. 11 | Moderate or heavy rain shower | 35° /22° | 11.1 mm | 8 | |
| Aug. 12 | Sunny | 41° /27° | 0 mm | 8.9 | |
| Aug. 13 | Sunny | 44° /28° | 0 mm | 9.2 | |
| Aug. 14 | Sunny | 43° /29° | 0 mm | 9.4 | |
| Aug. 15 | Sunny | 43° /27° | 0 mm | 9.5 | |
| Aug. 16 | Sunny | 43° /27° | 3.1 mm | 7.7 | |
| Aug. 17 | Sunny | 37° /24° | 0 mm | 9 | |
| Aug. 18 | Sunny | 45° /26° | 0 mm | 11 | |
| Aug. 19 | Sunny | 46° /31° | 0 mm | 11 | |
| Aug. 20 | Sunny | 41° /25° | 0 mm | 10 | |
| Aug. 21 | Sunny | 36° /20° | 0 mm | 9 | |
| Aug. 22 | Sunny | 38° /20° | 0 mm | 9 | |
| Aug. 23 | Sunny | 42° /20° | 0 mm | 10 | |
| Aug. 24 | Sunny | 42° /22° | 0 mm | 10 | |
| Aug. 25 | Sunny | 43° /23° | 0 mm | 10 | |
| Aug. 26 |  Heavy rain at times | 28° /20° | 0.6 mm | 7 | |
| Aug. 27 |  Partly cloudy | 29° /21° | 0.1 mm | 7 | |
| Aug. 28 | Cloudy | 29° /20° | 12.9 mm | 7 | |
| Aug. 29 |  Overcast | 31° /21° | 0 mm | 7 | |
| Aug. 30 |  Patchy rain possible | 27° /21° | 1.4 mm | 6 | |
| Aug. 31 | Patchy rain possible | 31° /19° | 3.9 mm | 7 | |
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Important Notice
Our weather forecast for Stillwater 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 Stillwater forecast closer to your planned date for the most up-to-date weather information.
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Stillwater in August - FAQ
What are the expected maximum and minimum temperatures in Stillwater during August?
During August, expect a variety of temperatures with highs around 33° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Stillwater during August?
Significant rainfall exceeding 142 mm is expected in Stillwater during August, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Stillwater during August?
The average wind speed in Stillwater during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Stillwater
Explore the daily rainfall trends and prepare for Stillwaters August weather 💧
Typically, Stillwater has 13 rainy days in August with a total of 142 mm of rainfall.
UV exposure in Stillwater during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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