S
M
T
W
T
F
S
30
78°
50°
31
78°
47°
1
77°
44°
2
70°
47°
3
70°
46°
4
69°
46°
5
69°
45°
6
68°
45°
7
72°
46°
8
74°
44°
9
72°
45°
10
73°
50°
11
72°
50°
12
71°
49°
13
72°
43°
14
73°
42°
15
72°
47°
16
71°
47°
17
65°
46°
18
65°
47°
19
63°
43°
20
70°
48°
21
69°
40°
22
64°
39°
23
Hist. Avg.
64°
41°
24
Hist. Avg.
64°
41°
25
Hist. Avg.
63°
41°
26
Hist. Avg.
63°
41°
27
Hist. Avg.
63°
40°
28
Hist. Avg.
62°
40°
29
Hist. Avg.
62°
40°
30
Hist. Avg.
62°
39°
1
Hist. Avg.
61°
39°
2
Hist. Avg.
61°
39°
3
Hist. Avg.
60°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Frog Lake
Frog Lake's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 39° and 50°. The average high for September is 71° with an average low of 46°. 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 Frog Lake. See also: October | November | December.
