S
M
T
W
T
F
S
30
81°
51°
31
77°
48°
1
73°
48°
2
73°
49°
3
74°
47°
4
72°
48°
5
72°
47°
6
73°
47°
7
73°
48°
8
78°
52°
9
74°
51°
10
70°
49°
11
71°
52°
12
74°
47°
13
75°
51°
14
77°
50°
15
70°
46°
16
69°
46°
17
67°
45°
18
69°
50°
19
67°
44°
20
67°
50°
21
Hist. Avg.
69°
46°
22
Hist. Avg.
68°
45°
23
Hist. Avg.
68°
45°
24
Hist. Avg.
67°
45°
25
Hist. Avg.
67°
44°
26
Hist. Avg.
67°
44°
27
Hist. Avg.
66°
44°
28
Hist. Avg.
66°
43°
29
Hist. Avg.
66°
43°
30
Hist. Avg.
65°
43°
1
Hist. Avg.
65°
42°
2
Hist. Avg.
64°
42°
3
Hist. Avg.
64°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Berkshire
Berkshire's September 2026 forecast shows daily high temperatures ranging from 67° to 81°, with overnight lows between 44° and 52°. The average high for September is 73° with an average low of 48°. 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 Berkshire. See also: October | November | December.