S
M
T
W
T
F
S
30
74°
53°
31
74°
59°
1
68°
60°
2
66°
59°
3
78°
59°
4
76°
56°
5
73°
54°
6
70°
45°
7
72°
49°
8
74°
53°
9
73°
59°
10
75°
52°
11
68°
51°
12
70°
53°
13
70°
52°
14
75°
55°
15
75°
53°
16
76°
48°
17
73°
48°
18
65°
43°
19
71°
49°
20
72°
49°
21
72°
48°
22
71°
49°
23
69°
49°
24
67°
44°
25
68°
47°
26
70°
50°
27
70°
50°
28
64°
45°
29
60°
42°
30
62°
42°
1
59°
39°
2
59°
41°
3
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Berkshire
Berkshire's September 2026 forecast shows daily high temperatures ranging from 58° to 78°, with overnight lows between 39° and 59°. The average high for September is 70° 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 Berkshire. See also: October | November | December.
