S
M
T
W
T
F
S
30
73°
49°
31
71°
49°
1
70°
47°
2
71°
48°
3
75°
48°
4
74°
47°
5
72°
47°
6
68°
44°
7
72°
47°
8
76°
48°
9
76°
47°
10
75°
47°
11
76°
46°
12
75°
47°
13
75°
46°
14
65°
39°
15
66°
40°
16
68°
45°
17
74°
46°
18
75°
45°
19
74°
44°
20
73°
44°
21
74°
45°
22
73°
43°
23
70°
41°
24
68°
43°
25
71°
43°
26
71°
44°
27
72°
41°
28
71°
42°
29
68°
41°
30
70°
40°
1
67°
37°
2
59°
31°
3
59°
31°
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 59° to 76°, with overnight lows between 31° and 49°. The average high for September is 71° with an average low of 44°. 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.
