S
M
T
W
T
F
S
30
71°
51°
31
78°
51°
1
78°
54°
2
72°
60°
3
77°
59°
4
77°
60°
5
72°
58°
6
71°
51°
7
78°
47°
8
74°
53°
9
66°
59°
10
77°
54°
11
67°
45°
12
74°
57°
13
70°
55°
14
65°
40°
15
70°
50°
16
73°
55°
17
72°
58°
18
71°
49°
19
68°
46°
20
65°
43°
21
63°
43°
22
63°
44°
23
65°
45°
24
66°
43°
25
66°
42°
26
61°
39°
27
60°
47°
28
70°
46°
29
67°
42°
30
60°
38°
1
62°
43°
2
63°
45°
3
65°
43°
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 60° to 74°, with overnight lows between 38° and 58°. The average high for September is 66° with an average low of 46°. 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.
