S
M
T
W
T
F
S
26
96°
74°
27
96°
79°
28
91°
74°
29
84°
73°
30
86°
69°
31
82°
67°
1
83°
60°
2
84°
59°
3
N/A
4
77°
59°
5
71°
60°
6
82°
66°
7
89°
66°
8
93°
71°
9
96°
71°
10
98°
73°
11
94°
69°
12
95°
68°
13
91°
69°
14
87°
64°
15
86°
65°
16
87°
64°
17
86°
63°
18
92°
70°
19
93°
69°
20
91°
69°
21
92°
68°
22
91°
68°
23
90°
67°
24
88°
68°
25
91°
66°
26
87°
65°
27
89°
65°
28
91°
66°
29
91°
65°
30
90°
66°
31
90°
66°
1
89°
66°
2
90°
67°
3
90°
66°
4
89°
66°
5
90°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Fairbury
Fairbury's August 2026 forecast shows daily high temperatures ranging from 71° to 98°, with overnight lows between 59° and 73°. The average high for August is 89° with an average low of 67°. 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.
