Temperature in Wisconsin in September

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

Wisconsin, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in September ranging from 20°C (68°F) in Minocqua to 24°C (75°F) in Prairie du Chien. Nighttime temperatures generally drop to 11°C (52°F) in Prairie du Chien and 7°C (45°F) in Minocqua.

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

Find the average daytime temperatures in September for the most popular destinations in Wisconsin on the map below. Click on a destination dot for more detailed information.

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 September

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 September: blue is cold, red is hot.

See all September weather averages, cities and regions in Wisconsin

Wisconsin temperatures in September: frequently asked questions

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

Average daytime highs in Wisconsin, the United States of America during September reach about 23°C (73°F) in Lake Geneva.

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

Nighttime temperatures in Lake Geneva typically drop to around 11°C (52°F) in September.

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

Data insights from our comprehensive database indicate that Prairie du Chien is the city with the highest warmth. Daytime peaks average near 24°C (75°F), while the nights are characterized by a low temperature close to 11°C (52°F).

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

Our database indicates that in September, Minocqua is the city with the coolest temperatures in Wisconsin, the United States of America. You can expect daytime highs of 20°C (68°F) and nighttime lows close to 7°C (45°F).

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

Lake Geneva enjoys close to 216 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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