S
M
T
W
T
F
S
27
68°
45°
28
68°
39°
29
64°
54°
30
68°
48°
1
72°
46°
2
72°
50°
3
70°
48°
4
73°
46°
5
70°
50°
6
70°
54°
7
70°
54°
8
73°
46°
9
61°
48°
10
59°
41°
11
63°
36°
12
63°
34°
13
64°
41°
14
68°
48°
15
66°
45°
16
81°
39°
17
64°
43°
18
63°
36°
19
64°
39°
20
64°
43°
21
70°
37°
22
61°
39°
23
59°
36°
24
57°
32°
25
55°
46°
26
57°
50°
27
57°
46°
28
54°
45°
29
55°
45°
30
54°
37°
31
54°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chehalis
Chehalis's October 2026 forecast shows daily high temperatures ranging from 54° to 54°, with overnight lows between 35° and 35°. The average high for October is 54° with an average low of 35°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Chehalis. See also: November | December | January.
