S
M
T
W
T
F
S
30
82°
63°
31
N/A
1
87°
69°
2
77°
68°
3
86°
69°
4
85°
63°
5
83°
59°
6
77°
58°
7
80°
60°
8
79°
58°
9
81°
61°
10
83°
61°
11
79°
60°
12
79°
60°
13
80°
58°
14
78°
57°
15
75°
56°
16
74°
61°
17
76°
54°
18
73°
52°
19
72°
51°
20
73°
54°
21
77°
59°
22
80°
60°
23
81°
59°
24
80°
57°
25
78°
54°
26
78°
56°
27
79°
57°
28
78°
57°
29
79°
53°
30
71°
49°
1
68°
48°
2
70°
52°
3
76°
55°
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 68° to 87°, with overnight lows between 48° and 69°. The average high for September is 78° with an average low of 58°. 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.
