Average August Temperatures for Wisconsin

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

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

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

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