S
M
T
W
T
F
S
30
88°
66°
31
84°
52°
1
77°
48°
2
85°
63°
3
96°
65°
4
90°
59°
5
92°
70°
6
83°
65°
7
79°
65°
8
87°
54°
9
80°
51°
10
86°
59°
11
83°
47°
12
68°
46°
13
62°
53°
14
68°
45°
15
66°
44°
16
64°
45°
17
66°
46°
18
72°
45°
19
70°
47°
20
65°
47°
21
68°
46°
22
65°
47°
23
58°
38°
24
68°
50°
25
75°
51°
26
70°
50°
27
73°
52°
28
72°
50°
29
68°
48°
30
70°
47°
1
63°
47°
2
68°
46°
3
67°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Long Lake
Long Lake's September 2026 forecast shows daily high temperatures ranging from 58° to 86°, with overnight lows between 38° and 59°. The average high for September is 69° 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 Long Lake. See also: October | November | December.
