S
M
T
W
T
F
S
28
82°
61°
29
91°
61°
30
89°
64°
1
95°
78°
2
102°
78°
3
101°
70°
4
97°
71°
5
84°
70°
6
71°
63°
7
73°
63°
8
84°
67°
9
83°
71°
10
87°
70°
11
80°
65°
12
80°
65°
13
86°
62°
14
95°
74°
15
100°
74°
16
96°
71°
17
94°
70°
18
84°
72°
19
85°
70°
20
87°
68°
21
85°
67°
22
83°
65°
23
84°
66°
24
85°
67°
25
86°
67°
26
85°
66°
27
87°
65°
28
84°
68°
29
86°
66°
30
82°
65°
31
82°
66°
1
83°
66°
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 82° to 100°, with overnight lows between 65° and 74°. The average high for July is 87° with an average low of 68°. 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.