Iowa (Des Moines)
August
Weather in Iowa for August 2026
Your guide to Iowa weather in August - trends and predictions
In general, the average temperature in Iowa at the beginning of August is 28.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.7 °C by the end of August.
Iowa in August brings notable rainfall, with an average of 18 rainy days and a total precipitation of 137.3 mm.
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Temperatures
Rain 🌧️
More
13
Dry days
18
Rainy days
0
Snow days
29°/17°
Temperatures
20 km/h
Avg max wind
70 %
Avg humidity
Iowa Weather August
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What’s the Weather Like in Iowa This August?
Discover the average temperatures and weather trends across Iowa’s cities this August.
Temperatures trend during August in Iowa
See the weather trend as well as the moving average line
August weather in Iowa day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Patchy rain possible | 30° /17° | 0.6 mm | 6 | |
| Aug. 2 |  Moderate or heavy rain shower | 27° /17° | 6.1 mm | 6 | |
| Aug. 3 | Patchy rain possible | 29° /17° | 0.1 mm | 7 | |
| Aug. 4 | Moderate or heavy rain shower | 29° /18° | 2.1 mm | 7 | |
| Aug. 5 |  Overcast | 30° /19° | 0.3 mm | 6 | |
| Aug. 6 | Moderate or heavy rain shower | 27° /17° | 7.6 mm | 6 | |
| Aug. 7 | Patchy rain possible | 28° /16° | 36.7 mm | 6 | |
| Aug. 8 | Patchy rain possible | 29° /17° | 0.5 mm | 7 | |
| Aug. 9 | Moderate or heavy rain shower | 25° /17° | 2.5 mm | 6 | |
| Aug. 10 | Overcast | 28° /17° | 27.9 mm | 7 | |
| Aug. 11 | Overcast | 29° /18° | 5.6 mm | 7 | |
| Aug. 12 |  Sunny | 27° /18° | 9.9 mm | 6 | |
| Aug. 13 |  Fog | 27° /15° | 5 mm | 6 | |
| Aug. 14 | Patchy rain possible | 26° /15° | 1.2 mm | 6 | |
| Aug. 15 |  Thundery outbreaks possible | 30° /16° | 2.4 mm | 7 | |
| Aug. 16 | Sunny | 32° /18° | 0 mm | 8 | |
| Aug. 17 |  Partly cloudy | 29° /18° | 0 mm | 7 | |
| Aug. 18 | Mist | 30° /17° | 0 mm | 7 | |
| Aug. 19 | Sunny | 31° /18° | 3.7 mm | 7 | |
| Aug. 20 | Patchy rain possible | 30° /19° | 0.1 mm | 7 | |
| Aug. 21 |  Cloudy | 30° /19° | 0 mm | 7 | |
| Aug. 22 | Overcast | 32° /17° | 0 mm | 7 | |
| Aug. 23 | Cloudy | 31° /18° | 0.1 mm | 7 | |
| Aug. 24 | Partly cloudy | 31° /18° | 1 mm | 7 | |
| Aug. 25 | Mist | 33° /17° | 0.3 mm | 8 | |
| Aug. 26 | Fog | 34° /17° | 0 mm | 7 | |
| Aug. 27 | Partly cloudy | 33° /17° | 1 mm | 8 | |
| Aug. 28 | Mist | 31° /15° | 1 mm | 7 | |
| Aug. 29 | Sunny | 33° /16° | 1.5 mm | 8 | |
| Aug. 30 | Sunny | 29° /16° | 2.1 mm | 7 | |
| Aug. 31 | Sunny | 29° /14° | 17.8 mm | 7 | |
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Important Notice
Our weather forecast for Iowa 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 Iowa forecast closer to your planned date for the most up-to-date weather information.
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Iowa in August - FAQ
What are the expected maximum and minimum temperatures in Iowa during August?
During August, expect a variety of temperatures with highs around 29° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Iowa during August?
Significant rainfall exceeding 137.3 mm is expected in Iowa during August, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Iowa during August?
The average wind speed in Iowa during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Iowa
Explore the daily rainfall trends and prepare for Iowas August weather 💧
Typically, Iowa has 18 rainy days in August with a total of 137.3 mm of rainfall.
UV exposure in Iowa during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Counties in Iowa
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Top locations in Iowa
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Where is Iowa?Get accurate weather forecasts for Iowa, located at latitude 41.601 and longitude -93.609. Stay updated with localized weather information tailored for Iowa.
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