S
M
T
W
T
F
S
30
91°
70°
31
93°
70°
1
95°
72°
2
98°
70°
3
99°
70°
4
97°
70°
5
95°
67°
6
89°
66°
7
89°
70°
8
88°
70°
9
90°
71°
10
91°
68°
11
88°
65°
12
84°
64°
13
86°
64°
14
84°
61°
15
80°
60°
16
77°
65°
17
78°
64°
18
74°
64°
19
75°
63°
20
75°
64°
21
77°
64°
22
80°
63°
23
78°
62°
24
75°
62°
25
80°
61°
26
80°
59°
27
75°
53°
28
71°
51°
29
70°
50°
30
70°
52°
1
71°
51°
2
72°
58°
3
73°
57°
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 70° to 99°, with overnight lows between 50° and 71°. The average high for September is 82° with an average low of 62°. 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.
