S
M
T
W
T
F
S
30
76°
59°
31
75°
54°
1
74°
55°
2
72°
53°
3
71°
52°
4
72°
53°
5
73°
56°
6
74°
58°
7
70°
56°
8
72°
53°
9
72°
52°
10
74°
58°
11
75°
58°
12
75°
59°
13
77°
58°
14
78°
56°
15
73°
49°
16
72°
50°
17
66°
56°
18
71°
57°
19
75°
56°
20
73°
48°
21
75°
46°
22
72°
45°
23
73°
53°
24
71°
55°
25
71°
46°
26
Hist. Avg.
69°
53°
27
Hist. Avg.
69°
52°
28
Hist. Avg.
68°
52°
29
Hist. Avg.
68°
52°
30
Hist. Avg.
68°
51°
1
Hist. Avg.
67°
51°
2
Hist. Avg.
67°
51°
3
Hist. Avg.
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Newbury
Newbury's September 2026 forecast shows daily high temperatures ranging from 66° to 78°, with overnight lows between 45° and 59°. The average high for September is 73° with an average low of 54°. 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.
