S
M
T
W
T
F
S
27
72°
39°
28
76°
33°
29
79°
57°
30
76°
47°
1
77°
42°
2
83°
42°
3
82°
44°
4
80°
45°
5
84°
43°
6
82°
42°
7
79°
41°
8
81°
41°
9
75°
44°
10
64°
34°
11
61°
33°
12
59°
36°
13
65°
29°
14
72°
39°
15
74°
34°
16
71°
31°
17
73°
39°
18
66°
31°
19
61°
40°
20
68°
36°
21
66°
41°
22
64°
46°
23
66°
33°
24
58°
44°
25
61°
40°
26
62°
39°
27
59°
43°
28
58°
42°
29
57°
40°
30
56°
42°
31
62°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Kennewick
Kennewick's October 2026 forecast shows daily high temperatures ranging from 56° to 68°, with overnight lows between 33° and 46°. The average high for October is 61° with an average low of 41°. 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 Kennewick. See also: November | December | January.
