S
M
T
W
T
F
S
27
83°
53°
28
80°
51°
29
73°
50°
30
72°
52°
1
70°
48°
2
67°
44°
3
65°
47°
4
69°
45°
5
66°
46°
6
65°
41°
7
63°
40°
8
64°
39°
9
65°
40°
10
66°
44°
11
66°
40°
12
62°
41°
13
59°
41°
14
59°
37°
15
57°
36°
16
56°
40°
17
57°
40°
18
59°
47°
19
66°
46°
20
62°
46°
21
65°
36°
22
60°
36°
23
60°
39°
24
62°
45°
25
66°
40°
26
62°
32°
27
54°
33°
28
52°
39°
29
51°
43°
30
61°
42°
31
Hist. Avg.
60°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Prosser
Prosser's October 2026 forecast shows daily high temperatures ranging from 51° to 83°, with overnight lows between 32° and 53°. The average high for October is 64° 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 Prosser. See also: November | December | January.
