S
M
T
W
T
F
S
30
85°
52°
31
76°
53°
1
76°
59°
2
78°
55°
3
82°
61°
4
84°
59°
5
84°
51°
6
78°
51°
7
76°
49°
8
75°
50°
9
77°
57°
10
77°
54°
11
76°
49°
12
73°
49°
13
75°
48°
14
74°
56°
15
73°
47°
16
76°
46°
17
71°
45°
18
71°
46°
19
72°
46°
20
71°
47°
21
70°
45°
22
70°
45°
23
72°
47°
24
75°
50°
25
76°
52°
26
77°
48°
27
77°
43°
28
69°
50°
29
69°
50°
30
76°
44°
1
71°
47°
2
72°
48°
3
66°
42°
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 66° to 85°, with overnight lows between 42° and 61°. The average high for September is 75° with an average low of 50°. 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.
