Measurements:
°C
°F
Iowa City
72°F
NE 6 mph
Feels like: 72°F
Precip: 78%
World Resorts USA Iowa City Weather August Weather in Iowa City

Iowa City Weather: August

Average Day Temperature: 85.9°F
Average Night Temperature: 68.0°F
Number of Sunny Days: 15 days
Sunshine Hours: 13.2 - 14.4 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.0 in

Air Temperature in August, °F

Select Year: 2026 2025 2024

The highest day temperature in August 2026 was 103°F. The lowest night temperature was 56°F. The average values for day and night temperatures during August were 86.1°F и 68.8°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Iowa City is 1.0 in. It makes august one of the most rainy months of the year.

Wind Speed in August, mph

The average wind speed in August is 7.8 mph. It makes August one of the most windless months of the year for Iowa City.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Iowa City in August is 9.0 hours.

Best Time to Visit Iowa City
The most sunny months:
September 19 days
October 17 days
August 15 days
The most warm months:
July 86.7 °F
August 85.9 °F
June 82.9 °F
The most cold months:
January 23.8 °F
February 31.2 °F
December 33.4 °F
The most rainy months:
June 3 days
May 3 days
April 3 days
The most windy months:
April 11 mph
March 11 mph
November 10 mph

Iowa City on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +72
Sarasota +86
Washington +66
24 Hours Weather Forecast
Iowa City
Local time: 08:42
15 sep, tuesday
0900 72°F
NE
6 mph
1200 78°F
SE
9 mph
1500 74°F
SE
14 mph
1800 68°F
S
7 mph
2100 68°F
S
6 mph
16 sep, wednesday
0000 64°F
SW
6 mph
0300 64°F
SW
6 mph
0600 64°F
SW
4 mph