S
M
T
W
T
F
S
27
68°
41°
28
65°
46°
29
70°
46°
30
68°
43°
1
67°
44°
2
71°
50°
3
71°
41°
4
66°
45°
5
63°
40°
6
61°
45°
7
61°
44°
8
62°
45°
9
59°
40°
10
60°
40°
11
63°
42°
12
62°
40°
13
64°
44°
14
58°
39°
15
57°
44°
16
57°
43°
17
56°
46°
18
55°
45°
19
57°
42°
20
58°
41°
21
63°
38°
22
55°
37°
23
53°
36°
24
Hist. Avg.
59°
42°
25
Hist. Avg.
59°
42°
26
Hist. Avg.
58°
42°
27
Hist. Avg.
58°
42°
28
Hist. Avg.
58°
42°
29
Hist. Avg.
57°
42°
30
Hist. Avg.
57°
42°
31
Hist. Avg.
56°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Chehalis
Chehalis's October 2026 forecast shows daily high temperatures ranging from 53° to 71°, with overnight lows between 36° and 50°. The average high for October is 62° with an average low of 42°. 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.
