S
M
T
W
T
F
S
28
36°
32°
29
43°
30°
30
36°
32°
31
46°
28°
1
41°
32°
2
46°
41°
3
54°
45°
4
48°
43°
5
48°
36°
6
45°
36°
7
41°
37°
8
45°
36°
9
48°
37°
10
50°
41°
11
52°
45°
12
55°
46°
13
59°
41°
14
52°
39°
15
50°
39°
16
54°
34°
17
52°
28°
18
48°
28°
19
36°
30°
20
39°
30°
21
43°
28°
22
43°
27°
23
46°
28°
24
45°
25°
25
43°
23°
26
46°
27°
27
46°
28°
28
50°
41°
29
54°
48°
30
52°
46°
31
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Chehalis
Chehalis'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 Chehalis. See also: February | March | April.
