Average August Temperatures for Minnesota

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

You can jump to a separate table for each region of the state: Southern, Northeastern and Northwestern Minnesota.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Southern Minnesota

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
79	60	Albert Lea	26	16
80	58	Faribault	27	14
80	59	Mankato	26	15
81	63	Minneapolis	27	17
80	59	Pipestone	27	15
81	59	Redwood Falls	27	15
78	58	Rochester	26	15
79	61	St. Paul	26	16
81	61	Winona	27	16
79	58	Worthington	26	14

Northeastern Minnesota

Average daily temperatures in August
High °F	Low °F	Place	High °C	Low °C
77	56	Big Sandy Lake Dam	25	14
76	55	Duluth	24	13
70	54	Grand Marais	21	12
73	52	Grand Portage	23	11
78	53	Grand Rapids	25	12
74	52	Gunflint Lake	23	11
75	48	Hibbing	24	9
76	50	International Falls	24	10
75	56	Two Harbors	24	13
80	55	Wild River State Park	27	13

Northwestern Minnesota

August temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
80	57	Agassiz Wildlife Refuge	27	14
78	59	Alexandria	26	15
78	55	Brainerd	26	13
78	55	Detroit Lakes	25	13
79	57	Fergus Falls	26	14
77	56	Mille Lacs Lake	25	14
81	59	Moorhead	27	15
79	56	St. Cloud	26	14
75	52	Warroad	24	11
78	51	Waskish	25	10

Average Temperatures for Minnesota in August

Southern Minnesota

Northeastern Minnesota

Northwestern Minnesota

Reference

More Minnesota Weather Information