S
M
T
W
T
F
S
30
65°
44°
31
65°
45°
1
67°
52°
2
72°
53°
3
73°
53°
4
67°
54°
5
68°
52°
6
72°
49°
7
64°
43°
8
63°
43°
9
67°
44°
10
70°
48°
11
71°
49°
12
62°
49°
13
65°
50°
14
69°
52°
15
72°
50°
16
69°
51°
17
67°
50°
18
65°
49°
19
67°
43°
20
62°
46°
21
66°
39°
22
60°
37°
23
57°
37°
24
57°
39°
25
61°
37°
26
56°
35°
27
55°
36°
28
55°
40°
29
56°
35°
30
53°
35°
1
54°
36°
2
52°
34°
3
52°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tewkesbury
Tewkesbury's September 2026 forecast shows daily high temperatures ranging from 52° to 73°, with overnight lows between 34° and 54°. The average high for September is 63° with an average low of 44°. 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 Tewkesbury. See also: October | November | December.