S
M
T
W
T
F
S
30
75°
35°
31
76°
39°
1
69°
44°
2
61°
45°
3
61°
40°
4
57°
40°
5
65°
35°
6
68°
43°
7
72°
32°
8
77°
32°
9
81°
39°
10
83°
45°
11
77°
43°
12
76°
40°
13
68°
39°
14
69°
28°
15
73°
30°
16
69°
38°
17
64°
37°
18
66°
28°
19
70°
31°
20
70°
41°
21
70°
38°
22
70°
37°
23
74°
37°
24
73°
43°
25
70°
46°
26
69°
41°
27
68°
42°
28
65°
43°
29
63°
42°
30
62°
42°
1
61°
39°
2
66°
36°
3
68°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Tahoe
Lake Tahoe's September 2026 forecast shows daily high temperatures ranging from 61° to 74°, with overnight lows between 36° and 46°. The average high for September is 68° with an average low of 41°. 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 Lake Tahoe. See also: October | November | December.
