S
M
T
W
T
F
S
26
81°
66°
27
78°
66°
28
85°
67°
29
85°
67°
30
86°
66°
31
84°
67°
1
86°
67°
2
85°
68°
3
86°
67°
4
84°
66°
5
84°
66°
6
85°
67°
7
86°
65°
8
77°
62°
9
77°
63°
10
78°
64°
11
83°
66°
12
84°
67°
13
86°
68°
14
85°
66°
15
84°
65°
16
78°
63°
17
77°
62°
18
77°
64°
19
84°
64°
20
85°
63°
21
84°
64°
22
83°
60°
23
80°
56°
24
75°
56°
25
76°
57°
26
76°
56°
27
77°
55°
28
77°
55°
29
79°
59°
30
81°
62°
31
77°
62°
1
78°
61°
2
82°
58°
3
81°
52°
4
73°
53°
5
73°
61°
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 73° to 86°, with overnight lows between 52° and 68°. The average high for August is 81° with an average low of 63°. 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.
