S
M
T
W
T
F
S
30
77°
57°
31
77°
63°
1
85°
67°
2
87°
68°
3
87°
66°
4
78°
64°
5
75°
57°
6
73°
57°
7
75°
56°
8
69°
55°
9
70°
54°
10
73°
55°
11
71°
54°
12
70°
53°
13
69°
53°
14
71°
50°
15
72°
55°
16
69°
54°
17
70°
50°
18
66°
45°
19
67°
48°
20
72°
53°
21
74°
54°
22
74°
53°
23
73°
53°
24
74°
52°
25
72°
50°
26
71°
50°
27
72°
51°
28
72°
51°
29
71°
50°
30
68°
45°
1
64°
43°
2
67°
46°
3
70°
49°
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 87°, with overnight lows between 43° and 68°. The average high for September is 72° with an average low of 53°. 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.
