S
M
T
W
T
F
S
30
78°
47°
31
71°
52°
1
74°
50°
2
74°
46°
3
68°
55°
4
71°
60°
5
61°
55°
6
57°
52°
7
64°
51°
8
70°
42°
9
66°
54°
10
75°
54°
11
67°
46°
12
69°
44°
13
75°
54°
14
73°
53°
15
72°
56°
16
72°
47°
17
68°
47°
18
69°
46°
19
67°
50°
20
68°
37°
21
62°
49°
22
62°
49°
23
65°
48°
24
68°
47°
25
64°
48°
26
67°
46°
27
59°
45°
28
61°
47°
29
67°
47°
30
67°
46°
1
66°
47°
2
66°
46°
3
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Berwick
Berwick's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 37° and 56°. The average high for September is 67° 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 Berwick. See also: October | November | December.
