S
M
T
W
T
F
S
26
80°
57°
27
79°
57°
28
78°
58°
29
79°
56°
30
79°
56°
31
80°
57°
1
80°
59°
2
81°
61°
3
80°
58°
4
80°
58°
5
82°
59°
6
84°
60°
7
86°
62°
8
87°
64°
9
85°
65°
10
86°
57°
11
81°
58°
12
79°
57°
13
81°
56°
14
81°
58°
15
80°
61°
16
87°
60°
17
86°
63°
18
86°
58°
19
Hist. Avg.
82°
63°
20
Hist. Avg.
82°
63°
21
Hist. Avg.
82°
63°
22
Hist. Avg.
82°
62°
23
Hist. Avg.
81°
62°
24
Hist. Avg.
81°
62°
25
Hist. Avg.
81°
62°
26
Hist. Avg.
81°
62°
27
Hist. Avg.
81°
62°
28
Hist. Avg.
81°
61°
29
Hist. Avg.
80°
61°
30
Hist. Avg.
80°
61°
31
Hist. Avg.
80°
60°
1
Hist. Avg.
80°
60°
2
Hist. Avg.
80°
60°
3
Hist. Avg.
79°
60°
4
Hist. Avg.
79°
59°
5
Hist. Avg.
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Fox Valley
Fox Valley's August 2026 forecast shows daily high temperatures ranging from 78° to 87°, with overnight lows between 56° and 65°. The average high for August is 82° with an average low of 59°. 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 Fox Valley. See also: September | October | November.
