S
M
T
W
T
F
S
30
71°
54°
31
71°
54°
1
70°
53°
2
68°
49°
3
65°
49°
4
65°
50°
5
67°
48°
6
69°
50°
7
69°
51°
8
70°
53°
9
70°
54°
10
69°
52°
11
68°
52°
12
66°
51°
13
67°
49°
14
64°
47°
15
63°
47°
16
63°
46°
17
65°
47°
18
64°
51°
19
65°
47°
20
62°
45°
21
62°
45°
22
63°
51°
23
65°
50°
24
66°
49°
25
66°
46°
26
64°
46°
27
61°
48°
28
60°
49°
29
61°
48°
30
61°
44°
1
62°
45°
2
59°
43°
3
59°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newbury
Newbury's September 2026 forecast shows daily high temperatures ranging from 59° to 71°, with overnight lows between 42° and 54°. The average high for September is 65° 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 Newbury. See also: October | November | December.
