S
M
T
W
T
F
S
28
33°
10°
29
38°
7°
30
37°
9°
31
36°
25°
1
41°
33°
2
49°
27°
3
40°
32°
4
35°
29°
5
38°
17°
6
41°
18°
7
38°
27°
8
28°
13°
9
42°
4°
10
41°
7°
11
43°
12°
12
46°
10°
13
50°
12°
14
52°
16°
15
51°
15°
16
49°
13°
17
48°
13°
18
50°
18°
19
47°
14°
20
44°
14°
21
42°
23°
22
49°
25°
23
48°
22°
24
39°
20°
25
40°
8°
26
47°
17°
27
48°
16°
28
45°
22°
29
46°
18°
30
50°
21°
31
48°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Sierra-at-Tahoe
Sierra-at-Tahoe's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Sierra-at-Tahoe. See also: February | March | April.