S
M
T
W
T
F
S
30
83°
58°
31
81°
68°
1
75°
63°
2
72°
68°
3
82°
63°
4
81°
62°
5
75°
57°
6
74°
56°
7
77°
60°
8
75°
61°
9
81°
64°
10
80°
62°
11
81°
58°
12
74°
56°
13
75°
55°
14
78°
56°
15
72°
55°
16
71°
59°
17
76°
55°
18
70°
52°
19
70°
51°
20
71°
55°
21
75°
59°
22
78°
59°
23
78°
58°
24
77°
56°
25
75°
55°
26
75°
56°
27
76°
57°
28
76°
56°
29
75°
52°
30
66°
47°
1
65°
47°
2
67°
54°
3
73°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wethersfield
Wethersfield's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 47° and 68°. The average high for September is 75° 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 Wethersfield. See also: October | November | December.
