Average Temperatures for Wisconsin in August

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Average temperatures for August at cities, towns, parks and lakes throughout Wisconsin are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.

You can jump to a separate table for each region of the state: Eastern Wisconsin, Southwest Wisconsin, Northern Wisconsin and the Lake Superior Shore.

Eastern Wisconsin

Average August temperatures
High °F Low °F Place High °C Low °C
79 61 Appleton 26 16
79 52 Crivitz, High Falls Flowage 26 11
78 60 Fond du Lac 25 15
78 57 Green Bay 25 14
78 63 Kenosha 26 17
83 61 Lake Geneva 28 16
76 61 Manitowoc 24 16
78 60 Marinette 25 15
79 63 Milwaukee 26 17
79 61 Oshkosh 26 16
77 64 Racine 25 18
80 62 Sheboygan 27 17
77 58 Sturgeon Bay 25 15
75 59 Washington Island 24 15

Southwest Wisconsin

Average daily temperatures in August
High °F Low °F Place High °C Low °C
80 59 Beaver Dam 27 15
81 61 Beloit 27 16
82 61 La Crosse 28 16
79 59 Madison 26 15
82 61 Prairie du Chien 28 16
77 58 Viroqua 25 14
80 55 Wisconsin Dells 27 13
81 58 Wisconsin Rapids 27 14

Northern Wisconsin

August temperatures: daily averages
High °F Low °F Place High °C Low °C
77 55 Drummond 25 13
80 58 Eau Claire 27 15
75 55 Park Falls 24 13
75 53 Rest Lake, Manitowish Waters 24 12
77 56 Rhinelander 25 13
78 57 Rice Lake 26 14
80 56 River Falls 27 13
81 60 St Croix Falls 27 15
78 57 Wausau 25 14
76 54 Willow Reservoir 24 12

Lake Superior Shore

Average August temperatures
High °F Low °F Place High °C Low °C
77 53 Ashland 25 11
76 56 Bayfield 24 13
77 55 Madeline Island 25 13
74 58 Superior 24 14
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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