S
M
T
W
T
F
S
30
86°
60°
31
87°
61°
1
90°
61°
2
88°
62°
3
90°
63°
4
90°
57°
5
86°
63°
6
89°
63°
7
87°
62°
8
86°
62°
9
84°
61°
10
86°
62°
11
88°
61°
12
88°
61°
13
87°
60°
14
87°
61°
15
86°
62°
16
88°
60°
17
87°
53°
18
82°
56°
19
81°
53°
20
82°
52°
21
79°
52°
22
77°
53°
23
79°
55°
24
84°
53°
25
84°
56°
26
82°
56°
27
83°
55°
28
82°
54°
29
81°
53°
30
82°
52°
1
79°
53°
2
81°
53°
3
76°
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 76° to 90°, with overnight lows between 48° and 63°. The average high for September is 84° with an average low of 57°. 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.
