S
M
T
W
T
F
S
30
78°
58°
31
79°
49°
1
71°
49°
2
70°
54°
3
69°
57°
4
76°
50°
5
78°
46°
6
70°
47°
7
68°
48°
8
68°
55°
9
69°
53°
10
68°
52°
11
67°
49°
12
66°
46°
13
66°
43°
14
64°
45°
15
65°
50°
16
63°
53°
17
68°
53°
18
73°
52°
19
73°
50°
20
69°
47°
21
70°
45°
22
65°
43°
23
61°
41°
24
60°
40°
25
61°
41°
26
61°
40°
27
59°
39°
28
Hist. Avg.
63°
42°
29
Hist. Avg.
62°
42°
30
Hist. Avg.
62°
41°
1
Hist. Avg.
62°
41°
2
Hist. Avg.
61°
40°
3
Hist. Avg.
61°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Turtle Lake
Turtle Lake's September 2026 forecast shows daily high temperatures ranging from 59° to 79°, with overnight lows between 39° and 58°. The average high for September is 68° 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 Turtle Lake. See also: October | November | December.
