S
M
T
W
T
F
S
28
75°
68°
29
90°
74°
30
91°
75°
1
93°
72°
2
89°
70°
3
86°
66°
4
77°
66°
5
79°
61°
6
80°
64°
7
83°
67°
8
84°
65°
9
81°
66°
10
82°
67°
11
85°
65°
12
83°
66°
13
84°
65°
14
82°
63°
15
78°
63°
16
81°
66°
17
77°
60°
18
78°
66°
19
78°
67°
20
81°
67°
21
84°
66°
22
85°
68°
23
85°
67°
24
82°
67°
25
84°
68°
26
85°
68°
27
85°
67°
28
83°
68°
29
86°
68°
30
84°
67°
31
82°
66°
1
78°
64°
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 77° to 93°, with overnight lows between 60° and 72°. The average high for July is 83° with an average low of 66°. 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.