S
M
T
W
T
F
S
30
75°
61°
31
N/A
1
71°
55°
2
68°
61°
3
75°
62°
4
74°
55°
5
69°
53°
6
76°
58°
7
72°
58°
8
70°
55°
9
70°
55°
10
67°
53°
11
69°
51°
12
66°
51°
13
67°
49°
14
66°
52°
15
68°
52°
16
65°
50°
17
65°
52°
18
67°
52°
19
68°
51°
20
63°
51°
21
65°
52°
22
67°
52°
23
67°
50°
24
64°
48°
25
64°
48°
26
66°
49°
27
65°
50°
28
65°
51°
29
64°
50°
30
65°
51°
1
65°
51°
2
64°
50°
3
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dereham
Dereham's September 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 48° and 62°. 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 Dereham. See also: October | November | December.
