S
M
T
W
T
F
S
30
69°
48°
31
68°
47°
1
69°
51°
2
69°
56°
3
70°
57°
4
77°
58°
5
77°
56°
6
76°
48°
7
75°
47°
8
69°
48°
9
68°
47°
10
67°
49°
11
67°
50°
12
66°
48°
13
71°
51°
14
71°
53°
15
70°
53°
16
65°
50°
17
67°
51°
18
69°
50°
19
70°
44°
20
67°
46°
21
67°
44°
22
70°
42°
23
63°
42°
24
62°
43°
25
62°
45°
26
62°
41°
27
63°
43°
28
61°
44°
29
59°
39°
30
60°
40°
1
60°
46°
2
66°
41°
3
65°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Belchertown
Belchertown's September 2026 forecast shows daily high temperatures ranging from 59° to 77°, with overnight lows between 39° and 58°. The average high for September is 67° with an average low of 47°. 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 Belchertown. See also: October | November | December.
