S
M
T
W
T
F
S
30
72°
59°
31
75°
52°
1
72°
46°
2
66°
57°
3
79°
64°
4
68°
54°
5
72°
48°
6
81°
54°
7
N/A
8
64°
48°
9
65°
47°
10
66°
54°
11
67°
48°
12
69°
55°
13
69°
50°
14
72°
55°
15
69°
49°
16
66°
46°
17
64°
49°
18
65°
48°
19
66°
49°
20
64°
51°
21
66°
52°
22
66°
51°
23
65°
51°
24
66°
50°
25
64°
46°
26
62°
46°
27
63°
47°
28
63°
49°
29
62°
48°
30
63°
48°
1
62°
42°
2
63°
48°
3
63°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Longwick
Longwick's September 2026 forecast shows daily high temperatures ranging from 62° to 72°, with overnight lows between 42° and 55°. The average high for September is 65° 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 Longwick. See also: October | November | December.
