S
M
T
W
T
F
S
26
91°
55°
27
90°
55°
28
91°
56°
29
91°
60°
30
92°
61°
31
92°
61°
1
93°
60°
2
91°
59°
3
92°
61°
4
91°
60°
5
91°
60°
6
92°
59°
7
92°
60°
8
91°
60°
9
92°
59°
10
92°
60°
11
91°
59°
12
92°
58°
13
91°
58°
14
92°
59°
15
92°
59°
16
91°
60°
17
92°
60°
18
88°
59°
19
91°
59°
20
90°
58°
21
89°
55°
22
87°
56°
23
87°
55°
24
88°
56°
25
86°
56°
26
87°
59°
27
92°
55°
28
92°
58°
29
Hist. Avg.
89°
58°
30
Hist. Avg.
89°
58°
31
Hist. Avg.
89°
58°
1
Hist. Avg.
89°
58°
2
Hist. Avg.
89°
58°
3
Hist. Avg.
89°
58°
4
Hist. Avg.
89°
58°
5
Hist. Avg.
89°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Suisun City
Suisun City's August 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 55° and 61°. The average high for August is 91° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Suisun City. See also: September | October | November.
