S
M
T
W
T
F
S
30
78°
63°
31
80°
65°
1
83°
66°
2
84°
63°
3
83°
59°
4
83°
64°
5
82°
61°
6
81°
58°
7
75°
62°
8
74°
63°
9
76°
56°
10
78°
54°
11
74°
62°
12
77°
56°
13
80°
60°
14
77°
58°
15
72°
61°
16
73°
53°
17
78°
52°
18
72°
54°
19
Hist. Avg.
74°
55°
20
Hist. Avg.
74°
54°
21
Hist. Avg.
74°
54°
22
Hist. Avg.
73°
54°
23
Hist. Avg.
73°
53°
24
Hist. Avg.
72°
53°
25
Hist. Avg.
72°
52°
26
Hist. Avg.
72°
52°
27
Hist. Avg.
71°
51°
28
Hist. Avg.
71°
51°
29
Hist. Avg.
70°
50°
30
Hist. Avg.
70°
50°
1
Hist. Avg.
70°
50°
2
Hist. Avg.
69°
49°
3
Hist. Avg.
69°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Wethersfield
Wethersfield's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 52° and 66°. The average high for September is 78° with an average low of 60°. 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.
