S
M
T
W
T
F
S
26
81°
61°
27
85°
64°
28
85°
65°
29
82°
65°
30
79°
64°
31
82°
63°
1
81°
64°
2
79°
62°
3
80°
63°
4
81°
62°
5
80°
61°
6
79°
62°
7
80°
61°
8
81°
64°
9
80°
64°
10
78°
63°
11
79°
62°
12
79°
62°
13
80°
63°
14
78°
62°
15
79°
63°
16
79°
63°
17
78°
62°
18
78°
61°
19
79°
58°
20
78°
61°
21
78°
56°
22
77°
54°
23
76°
55°
24
78°
56°
25
77°
59°
26
83°
60°
27
84°
61°
28
84°
61°
29
83°
60°
30
83°
56°
31
82°
55°
1
76°
60°
2
76°
58°
3
79°
54°
4
81°
60°
5
82°
60°
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 76° to 85°, with overnight lows between 54° and 65°. The average high for August is 80° with an average low of 61°. 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.
