S
M
T
W
T
F
S
30
86°
73°
31
90°
72°
1
95°
74°
2
97°
77°
3
102°
76°
4
97°
74°
5
84°
69°
6
82°
68°
7
82°
68°
8
81°
67°
9
79°
66°
10
80°
69°
11
82°
68°
12
81°
65°
13
81°
66°
14
80°
65°
15
80°
68°
16
77°
69°
17
78°
67°
18
78°
63°
19
75°
62°
20
75°
63°
21
77°
66°
22
79°
66°
23
79°
65°
24
81°
67°
25
79°
66°
26
77°
66°
27
78°
66°
28
78°
65°
29
79°
64°
30
77°
64°
1
72°
63°
2
74°
64°
3
75°
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 102°, with overnight lows between 62° and 77°. The average high for September is 81° with an average low of 67°. 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.
