S
M
T
W
T
F
S
26
92°
70°
27
93°
70°
28
92°
69°
29
93°
70°
30
93°
70°
31
92°
69°
1
94°
71°
2
94°
70°
3
93°
70°
4
92°
69°
5
93°
70°
6
93°
68°
7
91°
68°
8
91°
67°
9
90°
66°
10
87°
69°
11
91°
68°
12
92°
66°
13
90°
67°
14
91°
68°
15
93°
66°
16
92°
62°
17
89°
57°
18
82°
54°
19
79°
55°
20
80°
55°
21
80°
56°
22
81°
56°
23
79°
58°
24
81°
59°
25
86°
62°
26
88°
56°
27
80°
54°
28
80°
58°
29
85°
63°
30
88°
63°
31
89°
54°
1
88°
54°
2
77°
60°
3
84°
61°
4
87°
59°
5
87°
51°
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 77° to 94°, with overnight lows between 51° and 71°. The average high for August is 88° with an average low of 63°. 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.
