S
M
T
W
T
F
S
30
83°
52°
31
77°
51°
1
74°
52°
2
76°
58°
3
75°
52°
4
77°
58°
5
74°
58°
6
81°
53°
7
78°
51°
8
72°
50°
9
73°
49°
10
72°
55°
11
73°
49°
12
76°
47°
13
71°
48°
14
70°
55°
15
73°
54°
16
75°
46°
17
78°
45°
18
67°
45°
19
67°
46°
20
68°
46°
21
67°
47°
22
65°
46°
23
65°
48°
24
66°
49°
25
69°
49°
26
72°
51°
27
72°
47°
28
73°
42°
29
64°
41°
30
64°
47°
1
63°
48°
2
68°
49°
3
69°
47°
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 83°, with overnight lows between 41° and 58°. The average high for September is 72° 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.
