S
M
T
W
T
F
S
26
93°
71°
27
93°
69°
28
89°
70°
29
82°
63°
30
83°
64°
31
79°
63°
1
75°
68°
2
81°
68°
3
84°
64°
4
86°
62°
5
87°
67°
6
82°
68°
7
84°
69°
8
87°
68°
9
93°
72°
10
94°
73°
11
92°
72°
12
89°
70°
13
87°
69°
14
89°
69°
15
90°
68°
16
86°
68°
17
89°
66°
18
93°
71°
19
93°
70°
20
92°
70°
21
92°
69°
22
91°
69°
23
93°
70°
24
91°
69°
25
89°
70°
26
87°
69°
27
87°
69°
28
90°
68°
29
90°
67°
30
89°
68°
31
90°
68°
1
89°
67°
2
90°
67°
3
88°
65°
4
88°
66°
5
90°
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 82° to 94°, with overnight lows between 62° and 73°. The average high for August is 89° with an average low of 68°. 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.
