S
M
T
W
T
F
S
26
101°
64°
27
93°
60°
28
97°
62°
29
100°
61°
30
85°
64°
31
89°
54°
1
102°
62°
2
96°
67°
3
80°
47°
4
76°
42°
5
86°
43°
6
94°
48°
7
80°
44°
8
94°
49°
9
81°
52°
10
84°
59°
11
88°
56°
12
76°
55°
13
77°
53°
14
73°
60°
15
78°
55°
16
82°
52°
17
85°
57°
18
82°
51°
19
86°
56°
20
83°
55°
21
84°
53°
22
81°
62°
23
83°
60°
24
86°
57°
25
78°
52°
26
83°
59°
27
84°
58°
28
81°
56°
29
79°
57°
30
78°
54°
31
76°
53°
1
77°
52°
2
70°
54°
3
74°
56°
4
72°
58°
5
75°
57°
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 86°, with overnight lows between 52° and 62°. The average high for August is 79° with an average low of 56°. 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.
