S
M
T
W
T
F
S
27
51°
47°
28
52°
46°
29
52°
45°
30
54°
43°
1
50°
44°
2
49°
45°
3
51°
46°
4
56°
50°
5
52°
48°
6
54°
47°
7
52°
45°
8
52°
40°
9
51°
36°
10
51°
32°
11
46°
36°
12
51°
42°
13
48°
36°
14
50°
36°
15
44°
40°
16
51°
39°
17
48°
43°
18
50°
43°
19
48°
41°
20
50°
42°
21
45°
41°
22
46°
36°
23
46°
27°
24
45°
23°
25
40°
22°
26
41°
29°
27
51°
39°
28
49°
33°
29
45°
34°
30
46°
38°
31
43°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sunnyside
Sunnyside's October 2026 forecast shows daily high temperatures ranging from 43° to 51°, with overnight lows between 33° and 40°. The average high for October is 47° with an average low of 37°. 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 Sunnyside. See also: November | December | January.
