S
M
T
W
T
F
S
30
75°
61°
31
73°
57°
1
72°
56°
2
69°
62°
3
75°
63°
4
72°
51°
5
69°
53°
6
76°
56°
7
72°
55°
8
66°
51°
9
65°
46°
10
63°
47°
11
67°
52°
12
68°
51°
13
69°
50°
14
65°
53°
15
67°
53°
16
64°
52°
17
65°
53°
18
66°
53°
19
67°
52°
20
62°
52°
21
65°
53°
22
66°
54°
23
67°
51°
24
64°
49°
25
64°
49°
26
65°
50°
27
64°
51°
28
65°
52°
29
64°
51°
30
65°
52°
1
65°
52°
2
64°
51°
3
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Norwich
Norwich's September 2026 forecast shows daily high temperatures ranging from 62° to 76°, with overnight lows between 46° and 63°. The average high for September is 67° with an average low of 52°. 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 Norwich. See also: October | November | December.