S
M
T
W
T
F
S
30
91°
78°
31
91°
76°
1
91°
75°
2
90°
75°
3
91°
72°
4
N/A
5
91°
76°
6
92°
75°
7
92°
75°
8
91°
76°
9
92°
77°
10
92°
76°
11
95°
75°
12
91°
76°
13
92°
76°
14
91°
75°
15
89°
76°
16
90°
75°
17
91°
76°
18
89°
77°
19
87°
77°
20
88°
76°
21
87°
76°
22
89°
74°
23
87°
74°
24
86°
76°
25
87°
76°
26
86°
76°
27
86°
75°
28
87°
77°
29
87°
76°
30
86°
75°
1
86°
76°
2
87°
76°
3
88°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Three Lakes
Three Lakes's September 2026 forecast shows daily high temperatures ranging from 86° to 95°, with overnight lows between 74° and 77°. The average high for September is 89° with an average low of 76°. 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 Three Lakes. See also: October | November | December.
