S
M
T
W
T
F
S
27
73°
53°
28
74°
51°
29
73°
41°
30
64°
45°
1
68°
47°
2
68°
42°
3
61°
40°
4
61°
41°
5
62°
42°
6
64°
45°
7
68°
46°
8
68°
46°
9
67°
40°
10
68°
46°
11
67°
43°
12
67°
48°
13
59°
48°
14
58°
47°
15
57°
43°
16
56°
48°
17
57°
47°
18
57°
40°
19
56°
39°
20
60°
39°
21
57°
44°
22
55°
38°
23
55°
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 55° to 74°, with overnight lows between 36° and 53°. The average high for October is 63° 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 October weather will actually feel in Chehalis. See also: November | December | January.
