S
M
T
W
T
F
S
30
65°
56°
31
66°
51°
1
65°
51°
2
65°
55°
3
66°
50°
4
69°
49°
5
64°
50°
6
65°
51°
7
67°
53°
8
68°
56°
9
69°
54°
10
65°
54°
11
66°
55°
12
66°
54°
13
68°
54°
14
68°
55°
15
67°
52°
16
67°
51°
17
64°
54°
18
64°
53°
19
67°
48°
20
63°
48°
21
62°
47°
22
61°
48°
23
62°
49°
24
63°
53°
25
61°
54°
26
64°
53°
27
65°
53°
28
64°
51°
29
59°
50°
30
59°
47°
1
60°
46°
2
59°
45°
3
58°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Withern
Withern's September 2026 forecast shows daily high temperatures ranging from 58° to 69°, with overnight lows between 45° and 56°. The average high for September is 64° with an average low of 51°. 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 Withern. See also: October | November | December.
