S
M
T
W
T
F
S
30
84°
72°
31
85°
72°
1
84°
71°
2
81°
69°
3
79°
68°
4
78°
68°
5
77°
65°
6
77°
65°
7
83°
70°
8
80°
70°
9
79°
69°
10
83°
71°
11
84°
71°
12
84°
70°
13
83°
69°
14
82°
69°
15
83°
64°
16
81°
62°
17
75°
63°
18
75°
61°
19
76°
60°
20
75°
60°
21
76°
63°
22
79°
66°
23
80°
62°
24
80°
61°
25
75°
62°
26
75°
61°
27
76°
62°
28
78°
64°
29
79°
60°
30
78°
62°
1
72°
64°
2
76°
64°
3
77°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chesapeake
Chesapeake's September 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 60° and 72°. The average high for September is 79° 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 September weather will actually feel in Chesapeake. See also: October | November | December.
