S
M
T
W
T
F
S
26
86°
67°
27
85°
61°
28
81°
61°
29
81°
64°
30
80°
67°
31
82°
61°
1
81°
62°
2
83°
64°
3
82°
62°
4
80°
60°
5
84°
61°
6
80°
61°
7
80°
62°
8
Hist. Avg.
86°
62°
9
Hist. Avg.
86°
62°
10
Hist. Avg.
86°
62°
11
Hist. Avg.
86°
62°
12
Hist. Avg.
86°
62°
13
Hist. Avg.
86°
62°
14
Hist. Avg.
86°
62°
15
Hist. Avg.
86°
62°
16
Hist. Avg.
86°
62°
17
Hist. Avg.
86°
62°
18
Hist. Avg.
86°
62°
19
Hist. Avg.
86°
62°
20
Hist. Avg.
86°
61°
21
Hist. Avg.
86°
61°
22
Hist. Avg.
86°
61°
23
Hist. Avg.
86°
61°
24
Hist. Avg.
86°
61°
25
Hist. Avg.
86°
61°
26
Hist. Avg.
85°
61°
27
Hist. Avg.
85°
60°
28
Hist. Avg.
85°
60°
29
Hist. Avg.
85°
60°
30
Hist. Avg.
85°
60°
31
Hist. Avg.
85°
60°
1
Hist. Avg.
85°
59°
2
Hist. Avg.
84°
59°
3
Hist. Avg.
84°
59°
4
Hist. Avg.
84°
58°
5
Hist. Avg.
84°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in St. Joseph
St. Joseph's August 2026 forecast shows daily high temperatures ranging from 80° to 86°, with overnight lows between 60° and 67°. The average high for August is 82° with an average low of 63°. 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. Joseph. See also: September | October | November.
