S
M
T
W
T
F
S
30
82°
48°
31
74°
47°
1
73°
48°
2
75°
55°
3
74°
48°
4
74°
56°
5
75°
55°
6
80°
50°
7
77°
47°
8
71°
47°
9
72°
46°
10
70°
52°
11
72°
46°
12
74°
45°
13
68°
44°
14
69°
52°
15
73°
51°
16
74°
42°
17
76°
42°
18
66°
41°
19
65°
43°
20
65°
43°
21
66°
45°
22
63°
43°
23
63°
46°
24
66°
47°
25
67°
47°
26
70°
48°
27
70°
44°
28
69°
39°
29
62°
39°
30
60°
46°
1
61°
48°
2
65°
47°
3
67°
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 60° to 82°, with overnight lows between 39° and 56°. The average high for September is 70° with an average low of 47°. 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.
