S
M
T
W
T
F
S
30
75°
51°
31
77°
56°
1
77°
54°
2
73°
52°
3
74°
51°
4
74°
49°
5
75°
56°
6
76°
56°
7
77°
55°
8
77°
56°
9
79°
56°
10
Hist. Avg.
76°
49°
11
Hist. Avg.
75°
49°
12
Hist. Avg.
75°
48°
13
Hist. Avg.
74°
48°
14
Hist. Avg.
74°
48°
15
Hist. Avg.
74°
47°
16
Hist. Avg.
73°
47°
17
Hist. Avg.
73°
47°
18
Hist. Avg.
72°
46°
19
Hist. Avg.
72°
46°
20
Hist. Avg.
72°
46°
21
Hist. Avg.
71°
45°
22
Hist. Avg.
71°
45°
23
Hist. Avg.
70°
44°
24
Hist. Avg.
70°
44°
25
Hist. Avg.
70°
44°
26
Hist. Avg.
69°
43°
27
Hist. Avg.
69°
43°
28
Hist. Avg.
68°
42°
29
Hist. Avg.
68°
42°
30
Hist. Avg.
67°
42°
1
Hist. Avg.
67°
41°
2
Hist. Avg.
66°
41°
3
Hist. Avg.
66°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Walpole
Walpole's September 2026 forecast shows daily high temperatures ranging from 73° to 79°, with overnight lows between 49° and 56°. The average high for September is 76° with an average low of 54°. 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.
