S
M
T
W
T
F
S
27
72°
39°
28
76°
33°
29
79°
57°
30
76°
47°
1
76°
43°
2
83°
45°
3
84°
45°
4
82°
48°
5
86°
46°
6
82°
48°
7
80°
51°
8
81°
52°
9
77°
49°
10
74°
51°
11
76°
52°
12
76°
51°
13
77°
52°
14
67°
44°
15
72°
50°
16
64°
46°
17
63°
40°
18
65°
42°
19
67°
45°
20
69°
47°
21
69°
47°
22
67°
48°
23
64°
46°
24
61°
46°
25
65°
47°
26
65°
45°
27
57°
37°
28
55°
45°
29
58°
44°
30
59°
44°
31
63°
43°
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 55° to 86°, with overnight lows between 37° and 52°. The average high for October is 70° with an average low of 46°. 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.
