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Weather in August in Wisconsin

Are you planning a trip a to Wisconsin in August and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Wisconsin in August?

Wisconsin is a region in the United States of America. August in Wisconsin generally has warm temperatures, with precipitation levels ranging from moderate to high. During August, summer is in full swing.

Temperatures

The average maximum temperatures are warm and range from 24°C in Minocqua to 28°C in Onalaska. Nighttime temperatures generally drop to 17°C in Onalaska and 12°C in Minocqua.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Two Rivers with an average of 67 mm to high rainfall in Baldwin with 145 mm.

Average sunshine

The city Brookfield usually sees around 282 hours of sunlight, indicating many sunny days.

For a closer look at August's conditions in Wisconsin, see the map below. For a more detailed look at Wisconsin's yearly weather, check out our Wisconsin climate page.

Where to go in Wisconsin in August

Find more information for the most popular destinations in the Wisconsin on the map below. Click on a destination dot for more detailes.

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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

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

Brookfield

In August Brookfield generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 16°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Brookfield
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
<<  
28°C 
16°C 
319 hours 
98 mm 
9 days 
27°C 
16°C 
282 hours 
91 mm 
10 days 
23°C 
11°C 
216 hours 
84 mm 
10 days 
Climate in Brookfield

Lake Geneva

In August Lake Geneva generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 15°C and high monthly rainfall. So on average the conditions are pleasant that month.

Lake Geneva
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
<<  
28°C 
16°C 
319 hours 
97 mm 
10 days 
27°C 
15°C 
282 hours 
103 mm 
11 days 
23°C 
11°C 
216 hours 
85 mm 
10 days 
Climate in Lake Geneva

Oak Creek

In August Oak Creek generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 18°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Oak Creek
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
<<  
27°C 
18°C 
319 hours 
89 mm 
9 days 
26°C 
18°C 
282 hours 
91 mm 
11 days 
23°C 
13°C 
216 hours 
75 mm 
10 days 
Climate in Oak Creek

Pleasant Prairie

In August Pleasant Prairie generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 16°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Pleasant Prairie
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
<<  
28°C 
16°C 
319 hours 
97 mm 
10 days 
27°C 
16°C 
282 hours 
88 mm 
11 days 
23°C 
12°C 
216 hours 
89 mm 
10 days 
Climate in Pleasant Prairie

Janesville

In August Janesville generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 16°C and high monthly rainfall. So on average the conditions are pleasant that month.

Janesville
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
<<  
28°C 
16°C 
308 hours 
99 mm 
10 days 
27°C 
16°C 
272 hours 
136 mm 
11 days 
24°C 
11°C 
212 hours 
79 mm 
9 days 
Climate in Janesville

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

Is August the best time to visit Wisconsin?

We consider August to be one of the best times to travel to Wisconsin. Typically, the climate in Brookfield is perfect. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Wisconsin is in May, July, August and September with generally perfect weather in Brookfield. The weather in January, February, March, April, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Wisconsin. 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 travel conditions. Find out where to go with our weather planner.