S
M
T
W
T
F
S
28
80°
62°
29
84°
68°
30
88°
68°
1
85°
67°
2
86°
68°
3
82°
65°
4
81°
63°
5
82°
61°
6
81°
62°
7
81°
62°
8
82°
68°
9
83°
68°
10
83°
63°
11
82°
63°
12
83°
62°
13
85°
66°
14
84°
67°
15
85°
63°
16
84°
63°
17
84°
68°
18
85°
68°
19
90°
69°
20
86°
68°
21
85°
68°
22
86°
67°
23
86°
68°
24
89°
66°
25
85°
65°
26
85°
64°
27
86°
69°
28
88°
67°
29
89°
63°
30
88°
63°
31
83°
62°
1
83°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Fairfield
Fairfield's July 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 61° and 69°. The average high for July is 85° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Fairfield. See also: August | September | October.