S
M
T
W
T
F
S
27
70°
42°
28
67°
42°
29
66°
40°
30
65°
44°
1
68°
47°
2
72°
46°
3
72°
48°
4
77°
49°
5
77°
52°
6
78°
55°
7
79°
42°
8
70°
43°
9
73°
44°
10
74°
48°
11
75°
45°
12
73°
48°
13
74°
48°
14
73°
42°
15
62°
42°
16
60°
38°
17
60°
45°
18
61°
41°
19
59°
36°
20
58°
36°
21
59°
37°
22
56°
36°
23
56°
35°
24
55°
36°
25
56°
34°
26
55°
35°
27
56°
36°
28
58°
38°
29
57°
35°
30
54°
33°
31
54°
39°
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 54° to 79°, with overnight lows between 33° and 55°. The average high for October is 65° 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 Kennewick. See also: November | December | January.
