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
61°
51°
20
67°
47°
21
65°
43°
22
64°
43°
23
66°
48°
24
67°
50°
25
70°
51°
26
69°
55°
27
67°
52°
28
70°
52°
29
68°
49°
30
68°
49°
1
70°
50°
2
65°
44°
3
62°
48°
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 61° to 70°, with overnight lows between 43° and 55°. The average high for September is 67° with an average low of 49°. 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.
