S
M
T
W
T
F
S
30
70°
55°
31
66°
50°
1
70°
48°
2
68°
57°
3
73°
63°
4
66°
55°
5
70°
52°
6
73°
55°
7
66°
59°
8
64°
54°
9
64°
48°
10
63°
54°
11
66°
46°
12
67°
58°
13
68°
54°
14
71°
56°
15
65°
49°
16
62°
51°
17
63°
50°
18
63°
51°
19
65°
48°
20
64°
48°
21
64°
49°
22
63°
50°
23
65°
50°
24
63°
49°
25
58°
49°
26
58°
48°
27
62°
50°
28
61°
44°
29
56°
44°
30
56°
46°
1
57°
49°
2
60°
49°
3
59°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newtown/y Drenewydd
Newtown/y Drenewydd's September 2026 forecast shows daily high temperatures ranging from 56° to 71°, with overnight lows between 44° and 58°. The average high for September is 62° 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 Newtown/y Drenewydd. See also: October | November | December.
