Johnson County (Iowa City)
August
Weather in Johnson County, Iowa for August 2027
Your guide to Johnson County weather in August - trends and predictions
In general, the average temperature in Johnson County at the beginning of August is 26.8 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.7 °C by the end of August.
The climate of Johnson County in August is notably wet, with an average of 13 rainy days, and a total of 359.7 mm of precipitation.
Is August a good time to visit Johnson County? check out the best time to travel to Johnson County page.
✨ Is August a good time to visit Johnson County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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18
Dry days
13
Rainy days
0
Snow days
28°/17°
Temperatures
17 km/h
Avg max wind
78 %
Avg humidity
Johnson County Weather August
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Temperatures trend during August in Johnson County
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August weather in Johnson County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Moderate rain | 24° /15° | 10.7 mm | 6 | |
| Aug. 2 |  Mist | 26° /15° | 0.1 mm | 8 | |
| Aug. 3 | Mist | 27° /15° | 0 mm | 9 | |
| Aug. 4 | Moderate rain | 28° /16° | 24.3 mm | 9 | |
| Aug. 5 |  Light rain | 25° /19° | 8.6 mm | 5 | |
| Aug. 6 |  Thundery outbreaks possible | 29° /19° | 1.5 mm | 7 | |
| Aug. 7 | Moderate rain | 29° /20° | 18.1 mm | 9 | |
| Aug. 8 | Thundery outbreaks possible | 31° /20° | 0.2 mm | 9 | |
| Aug. 9 | Thundery outbreaks possible | 33° /21° | 4 mm | 9 | |
| Aug. 10 |  Torrential rain shower | 30° /21° | 167.2 mm | 8 | |
| Aug. 11 | Heavy rain | 29° /22° | 44 mm | 7 | |
| Aug. 12 | Light rain | 29° /22° | 9.8 mm | 8 | |
| Aug. 13 | Moderate rain | 28° /17° | 21.3 mm | 7 | |
| Aug. 14 | Moderate rain | 28° /19° | 11.1 mm | 5 | |
| Aug. 15 | Moderate rain | 31° /19° | 16.2 mm | 5 | |
| Aug. 16 | Thundery outbreaks possible | 31° /19° | 1.9 mm | 6 | |
| Aug. 17 | Fog | 31° /20° | 0 mm | 9 | |
| Aug. 18 |  Moderate or heavy rain with thunder | 31° /21° | 7.2 mm | 5 | |
| Aug. 19 | Light rain | 27° /18° | 2.7 mm | 5 | |
| Aug. 20 |  Cloudy | 27° /16° | 0 mm | 7 | |
| Aug. 21 |  Patchy rain possible | 26° /16° | 1.7 mm | 7 | |
| Aug. 22 | Cloudy | 26° /14° | 0 mm | 7 | |
| Aug. 23 |  Partly cloudy | 26° /13° | 0 mm | 7 | |
| Aug. 24 | Patchy rain possible | 27° /13° | 0.2 mm | 7 | |
| Aug. 25 | Cloudy | 26° /14° | 0 mm | 5 | |
| Aug. 26 | Cloudy | 30° /17° | 0.3 mm | 8 | |
| Aug. 27 | Patchy rain possible | 30° /16° | 1.9 mm | 7 | |
| Aug. 28 | Patchy rain possible | 28° /16° | 1.1 mm | 7 | |
| Aug. 29 | Patchy rain possible | 31° /17° | 1.8 mm | 5 | |
| Aug. 30 | Light rain | 28° /18° | 3.7 mm | 5 | |
| Aug. 31 |  Sunny | 29° /16° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Johnson 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 Johnson County forecast closer to your planned date for the most up-to-date weather information.
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Johnson County in August - FAQ
What are the expected maximum and minimum temperatures in Johnson County during August?
During August, expect a variety of temperatures with highs around 28° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Johnson County during August?
Significant rainfall exceeding 359.7 mm is expected in Johnson County during August, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Johnson County during August?
The average wind speed in Johnson County during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Johnson County
Explore the daily rainfall trends and prepare for Johnson Countys August weather 💧
Typically, Johnson County has 13 rainy days in August with a total of 359.7 mm of rainfall.
UV exposure in Johnson County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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