S
M
T
W
T
F
S
26
90°
74°
27
89°
74°
28
86°
73°
29
87°
74°
30
88°
73°
31
87°
69°
1
87°
69°
2
85°
71°
3
85°
73°
4
87°
73°
5
87°
71°
6
88°
71°
7
89°
73°
8
87°
73°
9
87°
72°
10
90°
72°
11
90°
71°
12
88°
72°
13
89°
70°
14
88°
72°
15
91°
71°
16
91°
72°
17
90°
72°
18
91°
71°
19
90°
67°
20
90°
67°
21
85°
68°
22
85°
66°
23
86°
66°
24
85°
67°
25
85°
66°
26
86°
66°
27
85°
67°
28
85°
67°
29
89°
66°
30
89°
65°
31
86°
67°
1
88°
69°
2
89°
66°
3
84°
64°
4
85°
65°
5
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fairmont
Fairmont's August 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 64° and 74°. The average high for August is 87° with an average low of 70°. 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 Fairmont. See also: September | October | November.
