S
M
T
W
T
F
S
30
73°
51°
31
72°
50°
1
73°
53°
2
73°
57°
3
74°
60°
4
80°
60°
5
81°
58°
6
81°
51°
7
79°
50°
8
72°
51°
9
72°
49°
10
71°
52°
11
71°
55°
12
70°
51°
13
72°
52°
14
75°
54°
15
75°
53°
16
69°
54°
17
70°
53°
18
73°
52°
19
74°
46°
20
72°
49°
21
72°
46°
22
73°
44°
23
67°
44°
24
66°
45°
25
66°
46°
26
65°
43°
27
65°
43°
28
66°
44°
29
63°
41°
30
64°
41°
1
63°
46°
2
70°
41°
3
68°
45°
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 63° to 81°, with overnight lows between 41° and 60°. The average high for September is 71° 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.
