Temperature in Wisconsin in August

Daytime highs, nighttime lows and the warmest cities in Wisconsin, the United States of America this August.

Wisconsin, the United States of America, a region in the United States of America, experiences high average maximum daytime temperatures in August, ranging from 24°C (75°F) in Minocqua to 28°C (82°F) in Onalaska. Nighttime temperatures generally drop to 17°C (63°F) in Onalaska and 12°C (54°F) in Minocqua. During August, summer is in full swing.

What is the temperature of the different cities in Wisconsin, the United States of America in August?

To get a sense of August's typical temperatures in the key spots of Wisconsin, explore the map below. Click on a point for an in-depth look.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Wisconsin, check out our Wisconsin's climate page.

See also: Wisconsin weather by month.

Best Places to Visit in Wisconsin in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Wisconsin.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

See all August weather averages, cities and regions in Wisconsin

Wisconsin temperatures in August: frequently asked questions

How hot does it get in Wisconsin, the United States of America in August?

Lake Geneva averages a daytime high of 27°C (81°F) in August, which is high for Wisconsin, the United States of America.

How cold does it get at night in Wisconsin, the United States of America in August?

Lake Geneva sees nighttime lows close to 15°C (59°F) in August.

What is the warmest city in August in Wisconsin, the United States of America?

Onalaska tops the warmest city list in our database with average maximum daytime temperatures around 28°C (82°F) and a minimum nighttime temperature of around 17°C (63°F).

What is the coldest city in August in Wisconsin, the United States of America?

According to our data, Minocqua holds the title for the coldest city in Wisconsin, the United States of America in August. It experiences maximum temperatures of approximately 24°C (75°F) and drops to lows of about 12°C (54°F) during the night.

How much sun does Wisconsin, the United States of America get in August?

Lake Geneva enjoys close to 282 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

Interested in more climate information?

We have much more information about the climate in Wisconsin.

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.

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