S
M
T
W
T
F
S
26
83°
66°
27
90°
72°
28
80°
66°
29
82°
56°
30
83°
60°
31
78°
61°
1
77°
67°
2
80°
65°
3
82°
60°
4
84°
60°
5
84°
62°
6
79°
65°
7
87°
63°
8
90°
66°
9
84°
72°
10
89°
70°
11
85°
69°
12
85°
66°
13
78°
63°
14
79°
62°
15
78°
63°
16
75°
60°
17
78°
65°
18
79°
61°
19
78°
58°
20
77°
61°
21
83°
63°
22
86°
68°
23
88°
68°
24
79°
62°
25
80°
67°
26
84°
67°
27
84°
66°
28
86°
66°
29
81°
63°
30
77°
62°
31
77°
58°
1
78°
63°
2
79°
65°
3
80°
66°
4
84°
65°
5
82°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Champaign
Champaign's August 2026 forecast shows daily high temperatures ranging from 75° to 90°, with overnight lows between 58° and 72°. The average high for August is 81° 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 Champaign. See also: September | October | November.
