S
M
T
W
T
F
S
30
75°
55°
31
76°
58°
1
68°
62°
2
70°
63°
3
79°
62°
4
76°
58°
5
69°
56°
6
68°
50°
7
74°
45°
8
71°
51°
9
70°
56°
10
79°
62°
11
70°
49°
12
75°
45°
13
72°
61°
14
68°
46°
15
70°
42°
16
76°
54°
17
77°
59°
18
71°
49°
19
62°
42°
20
55°
44°
21
57°
46°
22
65°
43°
23
65°
37°
24
68°
37°
25
74°
39°
26
69°
50°
27
62°
56°
28
59°
55°
29
59°
52°
30
62°
53°
1
71°
54°
2
75°
53°
3
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wallingford
Wallingford's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Wallingford. See also: October | November | December.
