S
M
T
W
T
F
S
26
89°
58°
27
89°
53°
28
88°
56°
29
89°
57°
30
88°
56°
31
89°
50°
1
87°
52°
2
87°
54°
3
88°
54°
4
89°
53°
5
88°
52°
6
87°
52°
7
87°
55°
8
86°
53°
9
88°
54°
10
88°
54°
11
86°
49°
12
85°
47°
13
82°
46°
14
85°
51°
15
85°
52°
16
84°
54°
17
85°
54°
18
85°
55°
19
84°
52°
20
88°
56°
21
87°
55°
22
81°
54°
23
83°
55°
24
84°
53°
25
82°
48°
26
76°
47°
27
74°
47°
28
73°
43°
29
73°
44°
30
75°
46°
31
77°
45°
1
76°
47°
2
73°
51°
3
73°
49°
4
70°
44°
5
71°
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 70° to 89°, with overnight lows between 43° and 58°. The average high for August is 83° with an average low of 51°. 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.
