S
M
T
W
T
F
S
30
86°
73°
31
90°
72°
1
93°
76°
2
88°
77°
3
92°
76°
4
92°
76°
5
85°
74°
6
82°
72°
7
81°
70°
8
82°
65°
9
85°
64°
10
93°
71°
11
84°
75°
12
87°
75°
13
85°
76°
14
83°
73°
15
80°
63°
16
80°
64°
17
86°
64°
18
91°
69°
19
81°
71°
20
88°
71°
21
85°
70°
22
80°
68°
23
80°
65°
24
75°
62°
25
76°
64°
26
73°
62°
27
74°
64°
28
75°
64°
29
76°
63°
30
75°
62°
1
71°
61°
2
71°
63°
3
78°
62°
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 71° to 91°, with overnight lows between 61° and 71°. The average high for September is 79° with an average low of 65°. 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.
