Sioux Falls (SD)
August
Weather in Sioux Falls, South Dakota for August 2027
Your guide to Sioux Falls weather in August - trends and predictions
In general, the average temperature in Sioux Falls at the beginning of August is 27.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 30.7 °C by the end of August.
Sioux Falls experiences moderate rainfall in August, with an average of 10 rainy days and a total precipitation of 138 mm.
Is August a good time to visit Sioux Falls? check out the best time to travel to Sioux Falls page.
✨ Is August a good time to visit Sioux Falls? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
10
Rainy days
0
Snow days
29°/16°
Temperatures
22 km/h
Avg max wind
70 %
Avg humidity
Sioux Falls Weather August
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Temperatures trend during August in Sioux Falls
See the weather trend as well as the moving average line
August weather in Sioux Falls day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Overcast | 27° /16° | 0.1 mm | 7 | |
| Aug. 2 |  Patchy rain possible | 30° /16° | 0.2 mm | 8 | |
| Aug. 3 |  Light rain | 30° /18° | 3.3 mm | 8 | |
| Aug. 4 |  Moderate or heavy rain shower | 29° /17° | 8.2 mm | 8 | |
| Aug. 5 |  Moderate rain | 26° /15° | 14.6 mm | 7 | |
| Aug. 6 | Patchy rain possible | 25° /16° | 2.2 mm | 7 | |
| Aug. 7 | Light rain | 27° /16° | 5.4 mm | 7 | |
| Aug. 8 | Overcast | 28° /15° | 0.4 mm | 7 | |
| Aug. 9 | Patchy rain possible | 27° /16° | 0.6 mm | 7 | |
| Aug. 10 | Light rain | 28° /14° | 8.4 mm | 7 | |
| Aug. 11 | Light rain | 28° /17° | 3.9 mm | 7 | |
| Aug. 12 | Light rain | 28° /17° | 3.4 mm | 7 | |
| Aug. 13 | Moderate rain | 26° /15° | 16.1 mm | 6 | |
| Aug. 14 | Light rain | 25° /17° | 3.9 mm | 6 | |
| Aug. 15 |  Thundery outbreaks possible | 28° /17° | 0.4 mm | 6 | |
| Aug. 16 | Patchy rain possible | 28° /17° | 1.1 mm | 7 | |
| Aug. 17 |  Sunny | 28° /16° | 0.1 mm | 7 | |
| Aug. 18 | Patchy rain possible | 29° /17° | 1 mm | 5 | |
| Aug. 19 | Patchy rain possible | 30° /17° | 0.5 mm | 6 | |
| Aug. 20 | Patchy rain possible | 27° /16° | 2.4 mm | 7 | |
| Aug. 21 |  Cloudy | 31° /17° | 0.3 mm | 7 | |
| Aug. 22 | Moderate rain | 31° /18° | 10.5 mm | 8 | |
| Aug. 23 | Cloudy | 30° /16° | 0.5 mm | 7 | |
| Aug. 24 | Light rain | 27° /16° | 4.4 mm | 6 | |
| Aug. 25 | Patchy rain possible | 32° /16° | 1.4 mm | 6 | |
| Aug. 26 | Overcast | 31° /14° | 0 mm | 8 | |
| Aug. 27 |  Fog | 30° /13° | 0 mm | 7 | |
| Aug. 28 | Fog | 31° /13° | 0.9 mm | 7 | |
| Aug. 29 |  Heavy rain | 31° /15° | 27.9 mm | 6 | |
| Aug. 30 | Light rain | 31° /16° | 6.8 mm | 7 | |
| Aug. 31 | Light rain | 31° /16° | 8.9 mm | 7.6 | |
| Next | |||||
Important Notice
Our weather forecast for Sioux Falls 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 Sioux Falls forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sioux Falls in August - FAQ
What are the expected maximum and minimum temperatures in Sioux Falls during August?
During August, expect a variety of temperatures with highs around 29° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sioux Falls during August?
Significant rainfall exceeding 138 mm is expected in Sioux Falls during August, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sioux Falls during August?
The average wind speed in Sioux Falls during August is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Sioux Falls
Explore the daily rainfall trends and prepare for Sioux Fallss August weather 💧
Typically, Sioux Falls has 10 rainy days in August with a total of 138 mm of rainfall.
UV exposure in Sioux Falls during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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