S
M
T
W
T
F
S
27
72°
46°
28
70°
40°
29
65°
57°
30
70°
51°
1
78°
46°
2
74°
54°
3
77°
51°
4
78°
52°
5
74°
54°
6
72°
51°
7
73°
50°
8
73°
51°
9
68°
49°
10
72°
48°
11
72°
48°
12
73°
47°
13
70°
49°
14
70°
47°
15
64°
44°
16
64°
43°
17
66°
40°
18
67°
43°
19
68°
46°
20
68°
48°
21
65°
45°
22
60°
43°
23
60°
47°
24
62°
47°
25
62°
46°
26
59°
41°
27
57°
38°
28
62°
42°
29
59°
45°
30
55°
46°
31
61°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Kelso
Kelso's October 2026 forecast shows daily high temperatures ranging from 55° to 78°, with overnight lows between 38° and 54°. The average high for October is 67° with an average low of 47°. 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 Kelso. See also: November | December | January.