S
M
T
W
T
F
S
26
86°
52°
27
84°
56°
28
89°
58°
29
89°
57°
30
88°
57°
31
85°
55°
1
78°
48°
2
79°
54°
3
87°
56°
4
88°
56°
5
87°
56°
6
88°
57°
7
86°
55°
8
82°
54°
9
85°
55°
10
87°
55°
11
88°
54°
12
88°
56°
13
87°
56°
14
87°
55°
15
86°
55°
16
86°
54°
17
85°
55°
18
86°
54°
19
86°
54°
20
85°
53°
21
85°
53°
22
86°
54°
23
86°
54°
24
85°
45°
25
84°
42°
26
74°
46°
27
78°
47°
28
83°
47°
29
86°
48°
30
87°
50°
31
88°
46°
1
85°
39°
2
74°
39°
3
76°
44°
4
83°
48°
5
84°
44°
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 74° to 89°, with overnight lows between 39° and 58°. The average high for August is 85° with an average low of 52°. 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.
