S
M
T
W
T
F
S
30
73°
51°
31
72°
50°
1
71°
51°
2
70°
49°
3
71°
49°
4
75°
55°
5
75°
51°
6
70°
54°
7
70°
48°
8
72°
47°
9
70°
54°
10
74°
56°
11
75°
53°
12
75°
53°
13
68°
46°
14
68°
46°
15
66°
44°
16
65°
45°
17
64°
51°
18
67°
49°
19
68°
52°
20
68°
43°
21
69°
42°
22
62°
40°
23
71°
50°
24
72°
51°
25
Hist. Avg.
67°
46°
26
Hist. Avg.
66°
45°
27
Hist. Avg.
66°
45°
28
Hist. Avg.
65°
44°
29
Hist. Avg.
65°
44°
30
Hist. Avg.
64°
44°
1
Hist. Avg.
64°
43°
2
Hist. Avg.
64°
43°
3
Hist. Avg.
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Amherst Junction
Amherst Junction's September 2026 forecast shows daily high temperatures ranging from 62° to 75°, with overnight lows between 40° and 56°. The average high for September is 70° with an average low of 49°. 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 Amherst Junction. See also: October | November | December.
