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Iowa weather in August

Considering a trip to Iowa this August and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Iowa in August?

Iowa is a region in the United States of America. August in Iowa generally has warm temperatures, with precipitation levels ranging from moderate to high. The month of August is in the summer season.

The average maximum temperatures are warm and range from 27°C in Mason City to 30°C in Keokuk. Nighttime temperatures generally drop to 19°C in Keokuk and 15°C in Mason City.

In August, precipitation varies across different areas. From moderate rainfall in Keokuk with an average of 82 mm to high rainfall in Creston with 158 mm. Meanwhile, Des Moines enjoys close to 299 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

To learn more about the conditions in specific areas of Iowa in August, check out the map below. For more details on the yearly weather, visit our Iowa climate page.

Where to go in Iowa in August

Find the average weather conditions in August for the most popular destinations in Iowa on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Iowa

What is the weather like in August for the 5 most popular destinations in Iowa?

Average weather in Des Moines

In August Des Moines generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 18°C and high monthly rainfall. So on average the conditions are pleasant that month.

Des Moines
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
19°C 
335 hours 
106 mm 
9 days 
29°C 
18°C 
299 hours 
121 mm 
11 days 
25°C 
13°C 
240 hours 
86 mm 
9 days 
Climate in Des Moines

Average weather in West Des Moines

In August West Des Moines generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 18°C and high monthly rainfall. So on average the conditions are pleasant that month.

West Des Moines
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
19°C 
335 hours 
101 mm 
9 days 
29°C 
18°C 
299 hours 
116 mm 
11 days 
25°C 
13°C 
240 hours 
80 mm 
9 days 
Climate in West Des Moines

Average weather in Ames

In August Ames generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 16°C and high monthly rainfall. So on average the conditions are pleasant that month.

Ames
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
29°C 
17°C 
335 hours 
113 mm 
10 days 
28°C 
16°C 
299 hours 
137 mm 
10 days 
25°C 
11°C 
240 hours 
106 mm 
10 days 
Climate in Ames

Average weather in Urbandale

In August Urbandale generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 18°C and high monthly rainfall. So on average the conditions are pleasant that month.

Urbandale
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
19°C 
335 hours 
109 mm 
9 days 
29°C 
18°C 
299 hours 
130 mm 
11 days 
25°C 
13°C 
240 hours 
92 mm 
9 days 
Climate in Urbandale

Average weather in Ankeny

In August Ankeny generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 17°C and high monthly rainfall. So on average the conditions are pleasant that month.

Ankeny
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
18°C 
335 hours 
116 mm 
10 days 
29°C 
17°C 
299 hours 
124 mm 
11 days 
25°C 
12°C 
240 hours 
94 mm 
9 days 
Climate in Ankeny

Is your destination not in the list? Have a look at other destinations in Iowa, in the United States of America.

Is August the best time to visit Iowa?

Given the typically pleasant weather conditions in Des Moines, August might be a good time to visit Iowa.

On average, the best time to visit Iowa is in September with generally perfect weather in Des Moines. On the other hand, the months of January, February, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Iowa. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.