S
M
T
W
T
F
S
26
85°
67°
27
80°
65°
28
79°
61°
29
80°
65°
30
86°
68°
31
86°
67°
1
83°
66°
2
82°
65°
3
87°
59°
4
80°
59°
5
80°
63°
6
81°
60°
7
80°
59°
8
81°
57°
9
80°
58°
10
80°
64°
11
82°
61°
12
82°
61°
13
86°
57°
14
79°
58°
15
80°
60°
16
80°
58°
17
79°
58°
18
79°
57°
19
80°
56°
20
80°
58°
21
81°
63°
22
83°
64°
23
85°
65°
24
86°
64°
25
87°
61°
26
85°
58°
27
82°
62°
28
84°
61°
29
82°
55°
30
82°
54°
31
78°
52°
1
77°
55°
2
76°
54°
3
77°
55°
4
77°
53°
5
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fairbury
Fairbury's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 52° and 68°. The average high for August is 81° with an average low of 60°. 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 Fairbury. See also: September | October | November.
