S
M
T
W
T
F
S
26
99°
75°
27
98°
76°
28
93°
73°
29
86°
67°
30
87°
67°
31
80°
67°
1
80°
69°
2
83°
70°
3
86°
65°
4
89°
65°
5
89°
67°
6
76°
69°
7
91°
69°
8
90°
68°
9
93°
71°
10
92°
76°
11
96°
78°
12
94°
76°
13
94°
74°
14
94°
79°
15
93°
76°
16
92°
73°
17
85°
68°
18
87°
65°
19
82°
71°
20
87°
71°
21
89°
66°
22
86°
60°
23
83°
56°
24
81°
62°
25
84°
63°
26
85°
64°
27
87°
63°
28
84°
64°
29
87°
65°
30
89°
67°
31
90°
67°
1
87°
59°
2
81°
59°
3
80°
58°
4
84°
64°
5
78°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Jacob
St. Jacob's August 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 56° and 67°. The average high for August is 84° with an average low of 62°. 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. Jacob. See also: September | October | November.
