S
M
T
W
T
F
S
30
75°
61°
31
73°
57°
1
72°
54°
2
70°
57°
3
75°
66°
4
70°
57°
5
69°
56°
6
71°
60°
7
73°
57°
8
68°
49°
9
66°
49°
10
65°
56°
11
68°
51°
12
62°
50°
13
64°
52°
14
66°
55°
15
67°
55°
16
68°
54°
17
66°
52°
18
65°
52°
19
64°
52°
20
66°
55°
21
67°
55°
22
67°
54°
23
66°
54°
24
67°
53°
25
66°
53°
26
64°
52°
27
64°
53°
28
63°
52°
29
63°
52°
30
65°
51°
1
64°
48°
2
63°
52°
3
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Walpole
Walpole's September 2026 forecast shows daily high temperatures ranging from 62° to 73°, with overnight lows between 48° and 60°. The average high for September is 66° with an average low of 53°. 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 Walpole. See also: October | November | December.
