S
M
T
W
T
F
S
26
87°
71°
27
87°
68°
28
87°
68°
29
88°
69°
30
87°
68°
31
91°
70°
1
92°
71°
2
90°
69°
3
87°
71°
4
87°
68°
5
88°
70°
6
87°
68°
7
86°
68°
8
85°
70°
9
86°
70°
10
86°
71°
11
87°
70°
12
86°
68°
13
89°
70°
14
92°
67°
15
90°
69°
16
90°
69°
17
88°
71°
18
90°
70°
19
86°
68°
20
89°
67°
21
85°
68°
22
85°
67°
23
89°
70°
24
90°
70°
25
85°
69°
26
89°
70°
27
89°
71°
28
88°
70°
29
89°
71°
30
89°
65°
31
88°
65°
1
85°
66°
2
85°
67°
3
84°
67°
4
87°
65°
5
88°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fairfield
Fairfield's August 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 65° and 71°. The average high for August is 88° with an average low of 69°. 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 Fairfield. See also: September | October | November.
