S
M
T
W
T
F
S
26
76°
68°
27
76°
67°
28
79°
69°
29
81°
69°
30
78°
68°
31
77°
69°
1
80°
68°
2
79°
69°
3
78°
69°
4
81°
68°
5
76°
65°
6
77°
68°
7
81°
67°
8
75°
63°
9
74°
61°
10
74°
62°
11
75°
67°
12
75°
67°
13
78°
68°
14
80°
68°
15
79°
67°
16
74°
63°
17
74°
57°
18
74°
59°
19
77°
67°
20
80°
65°
21
79°
66°
22
78°
65°
23
76°
62°
24
73°
59°
25
73°
63°
26
74°
58°
27
72°
59°
28
73°
61°
29
76°
62°
30
79°
61°
31
79°
65°
1
78°
65°
2
79°
63°
3
78°
55°
4
71°
54°
5
70°
59°
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 70° to 81°, with overnight lows between 54° and 69°. The average high for August is 77° with an average low of 64°. 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.
