S
M
T
W
T
F
S
30
79°
52°
31
78°
53°
1
68°
62°
2
72°
61°
3
78°
59°
4
82°
59°
5
76°
53°
6
75°
48°
7
77°
54°
8
75°
52°
9
76°
57°
10
79°
56°
11
75°
54°
12
73°
53°
13
74°
54°
14
69°
53°
15
70°
48°
16
71°
53°
17
75°
51°
18
67°
45°
19
73°
51°
20
74°
50°
21
72°
48°
22
72°
50°
23
71°
51°
24
69°
47°
25
69°
48°
26
71°
51°
27
71°
51°
28
70°
47°
29
62°
43°
30
65°
45°
1
61°
41°
2
61°
43°
3
60°
46°
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 60° to 82°, with overnight lows between 41° and 61°. The average high for September is 71° with an average low of 51°. 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.
