S
M
T
W
T
F
S
26
85°
56°
27
85°
57°
28
86°
59°
29
89°
59°
30
92°
60°
31
92°
61°
1
91°
59°
2
87°
59°
3
86°
58°
4
87°
57°
5
85°
57°
6
87°
58°
7
85°
56°
8
85°
56°
9
86°
57°
10
85°
57°
11
85°
56°
12
90°
56°
13
91°
58°
14
90°
60°
15
91°
61°
16
91°
59°
17
92°
60°
18
93°
60°
19
92°
59°
20
92°
61°
21
91°
60°
22
92°
58°
23
89°
61°
24
92°
61°
25
93°
60°
26
92°
60°
27
92°
61°
28
91°
60°
29
89°
56°
30
86°
57°
31
86°
61°
1
89°
62°
2
92°
62°
3
92°
59°
4
85°
60°
5
86°
58°
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 85° to 93°, with overnight lows between 56° and 62°. The average high for August is 89° with an average low of 59°. 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.
