S
M
T
W
T
F
S
27
76°
48°
28
78°
49°
29
78°
50°
30
77°
47°
1
75°
46°
2
75°
48°
3
76°
49°
4
77°
46°
5
77°
43°
6
71°
39°
7
63°
41°
8
63°
40°
9
66°
38°
10
64°
36°
11
64°
39°
12
66°
40°
13
65°
43°
14
67°
42°
15
60°
38°
16
58°
43°
17
60°
38°
18
58°
35°
19
55°
34°
20
56°
32°
21
53°
34°
22
54°
38°
23
57°
34°
24
56°
31°
25
56°
33°
26
57°
40°
27
61°
34°
28
59°
44°
29
58°
40°
30
53°
41°
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 53° to 78°, with overnight lows between 31° and 50°. The average high for October is 64° with an average low of 40°. 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.
