S
M
T
W
T
F
S
26
99°
73°
27
100°
75°
28
89°
69°
29
94°
69°
30
91°
71°
31
76°
65°
1
86°
62°
2
84°
65°
3
86°
66°
4
80°
61°
5
80°
62°
6
82°
64°
7
84°
66°
8
84°
65°
9
80°
64°
10
79°
62°
11
81°
63°
12
79°
64°
13
79°
65°
14
80°
62°
15
76°
66°
16
84°
66°
17
83°
68°
18
85°
67°
19
83°
65°
20
83°
66°
21
82°
68°
22
85°
67°
23
83°
66°
24
83°
66°
25
79°
64°
26
74°
63°
27
73°
61°
28
79°
64°
29
81°
64°
30
83°
65°
31
83°
65°
1
82°
64°
2
82°
65°
3
83°
65°
4
83°
64°
5
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mendota Heights
Mendota Heights's August 2026 forecast shows daily high temperatures ranging from 73° to 86°, with overnight lows between 61° and 68°. The average high for August is 82° with an average low of 65°. 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 Mendota Heights. See also: September | October | November.
