S
M
T
W
T
F
S
30
86°
68°
31
91°
64°
1
90°
61°
2
88°
65°
3
86°
70°
4
88°
67°
5
85°
67°
6
84°
66°
7
85°
67°
8
84°
66°
9
83°
60°
10
82°
53°
11
88°
63°
12
76°
55°
13
72°
47°
14
66°
44°
15
73°
51°
16
76°
45°
17
74°
58°
18
64°
58°
19
64°
58°
20
70°
53°
21
63°
49°
22
67°
45°
23
71°
47°
24
71°
53°
25
74°
58°
26
67°
56°
27
73°
55°
28
72°
53°
29
68°
60°
30
69°
58°
1
65°
45°
2
64°
46°
3
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Somerset
Somerset's September 2026 forecast shows daily high temperatures ranging from 64° to 66°, with overnight lows between 45° and 46°. The average high for September is 65° with an average low of 46°. 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 Somerset. See also: October | November | December.
