S
M
T
W
T
F
S
26
88°
71°
27
84°
63°
28
85°
64°
29
86°
70°
30
88°
66°
31
87°
64°
1
86°
65°
2
85°
64°
3
84°
63°
4
85°
63°
5
85°
64°
6
86°
63°
7
85°
63°
8
86°
66°
9
89°
69°
10
87°
64°
11
86°
67°
12
90°
71°
13
92°
63°
14
89°
62°
15
85°
62°
16
85°
63°
17
86°
65°
18
90°
63°
19
83°
61°
20
83°
60°
21
84°
62°
22
84°
60°
23
82°
60°
24
83°
62°
25
83°
67°
26
82°
68°
27
89°
68°
28
90°
67°
29
91°
59°
30
85°
59°
31
82°
63°
1
84°
65°
2
82°
60°
3
81°
59°
4
81°
65°
5
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Paul
St. Paul's August 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 59° and 71°. The average high for August is 86° with an average low of 64°. 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 St. Paul. See also: September | October | November.
