S
M
T
W
T
F
S
30
73°
59°
31
72°
54°
1
70°
57°
2
70°
62°
3
74°
62°
4
68°
51°
5
69°
55°
6
75°
57°
7
70°
55°
8
65°
51°
9
64°
48°
10
63°
49°
11
68°
52°
12
67°
51°
13
68°
52°
14
66°
49°
15
67°
52°
16
63°
48°
17
63°
53°
18
65°
54°
19
67°
53°
20
62°
51°
21
66°
53°
22
66°
53°
23
65°
50°
24
63°
47°
25
63°
46°
26
65°
48°
27
64°
49°
28
64°
51°
29
64°
52°
30
65°
51°
1
65°
52°
2
64°
51°
3
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cheltenham
Cheltenham's September 2026 forecast shows daily high temperatures ranging from 62° to 75°, with overnight lows between 46° and 62°. The average high for September is 66° with an average low of 52°. 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 Cheltenham. See also: October | November | December.
