S
M
T
W
T
F
S
28
88°
53°
29
92°
58°
30
84°
57°
1
82°
56°
2
85°
56°
3
92°
55°
4
91°
56°
5
83°
56°
6
84°
56°
7
78°
55°
8
87°
54°
9
95°
56°
10
85°
56°
11
92°
55°
12
97°
61°
13
95°
69°
14
105°
68°
15
101°
66°
16
91°
55°
17
84°
55°
18
83°
56°
19
85°
58°
20
81°
57°
21
86°
59°
22
91°
58°
23
92°
58°
24
91°
59°
25
91°
57°
26
90°
59°
27
91°
58°
28
91°
57°
29
90°
58°
30
85°
56°
31
85°
56°
1
86°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Fairfield-Suisun City
Fairfield-Suisun City's July 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 55° and 59°. The average high for July is 88° with an average low of 57°. 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-Suisun City. See also: August | September | October.
