S
M
T
W
T
F
S
26
101°
75°
27
102°
73°
28
102°
72°
29
100°
68°
30
101°
71°
31
99°
69°
1
97°
70°
2
97°
70°
3
98°
71°
4
101°
74°
5
100°
75°
6
101°
74°
7
101°
73°
8
100°
72°
9
101°
72°
10
102°
66°
11
100°
64°
12
96°
64°
13
93°
65°
14
93°
66°
15
95°
65°
16
98°
65°
17
99°
67°
18
99°
70°
19
98°
68°
20
99°
64°
21
98°
64°
22
95°
63°
23
92°
62°
24
91°
61°
25
92°
62°
26
90°
62°
27
90°
63°
28
91°
63°
29
91°
64°
30
92°
68°
31
93°
69°
1
97°
70°
2
98°
68°
3
98°
65°
4
97°
68°
5
96°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Minnesota
Minnesota's August 2026 forecast shows daily high temperatures ranging from 90° to 102°, with overnight lows between 61° and 75°. The average high for August is 97° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Minnesota. See also: September | October | November.