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United StatesThe weather in August in Iowa
It's warm in August in Iowa with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 31°C. At night, you can expect temperatures between 15°C and 20°C.
Looking for sun? August isn’t a good month to be in Iowa. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Iowa, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2023, Iowa reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 17°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 27°C.
Rainfall amount
In August, there is an average of 147 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in August for Iowa
Click on any day in August to get detailed info about the usual weather on that day in Iowa. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Iowa | New York | |
|---|---|---|
| Average temperature | 28°C | 30°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 15°C | -5°C |
| Total precipitation | 147 mm | 79 mm |
| Rainy days | 15 days | 13 days |
Start of August
The month of August starts in Iowa with hot temps, averaging around 29°C during the day and nights around 19°C.
Mid August
By mid-August, daytime temps drop to around 28°C, with nights around 18°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of August
By the end of August, the average daytime temperature in Iowa is around 28°C, while nighttime temps are about 18°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable vacations to Iowa
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Iowa for all months and discover the best travel time
The climate in Iowa is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Iowa to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in August in Iowa, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Iowa
Temperature in August in Iowa over the years
Precipitation charts
These charts show the average amount of precipitation in August in Iowa, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Iowa
Total precipitation in August in Iowa over the years
Daily UV index in August in Iowa
This chart shows the average daily UV index in August in Iowa, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Iowa
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Average weather in Iowa by month
Click on a month below to see detailed weather info for Iowa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.