S
M
T
W
T
F
S
30
68°
49°
31
67°
50°
1
69°
51°
2
69°
53°
3
71°
54°
4
71°
49°
5
69°
49°
6
67°
51°
7
68°
50°
8
70°
49°
9
70°
53°
10
69°
54°
11
70°
54°
12
69°
49°
13
66°
47°
14
65°
51°
15
64°
52°
16
65°
54°
17
65°
53°
18
68°
52°
19
65°
53°
20
68°
53°
21
69°
50°
22
67°
47°
23
62°
45°
24
62°
47°
25
63°
48°
26
64°
47°
27
63°
48°
28
61°
52°
29
64°
51°
30
64°
50°
1
65°
51°
2
66°
50°
3
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Upton
Upton's September 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 45° and 54°. The average high for September is 67° with an average low of 50°. 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 Upton. See also: October | November | December.
