S
M
T
W
T
F
S
28
82°
59°
29
82°
57°
30
85°
65°
1
92°
74°
2
99°
73°
3
96°
71°
4
90°
61°
5
83°
62°
6
82°
58°
7
80°
59°
8
84°
61°
9
83°
62°
10
79°
61°
11
82°
62°
12
79°
62°
13
77°
59°
14
75°
56°
15
75°
56°
16
76°
57°
17
76°
57°
18
77°
62°
19
80°
63°
20
82°
63°
21
83°
64°
22
84°
64°
23
83°
63°
24
83°
65°
25
84°
64°
26
85°
65°
27
85°
65°
28
84°
64°
29
84°
63°
30
82°
61°
31
76°
57°
1
75°
56°
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 75° to 99°, with overnight lows between 56° and 74°. The average high for July is 82° with an average low of 62°. 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.