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°
44°
7
52°
43°
8
52°
40°
9
55°
36°
10
53°
41°
11
51°
45°
12
53°
48°
13
55°
49°
14
54°
46°
15
55°
46°
16
49°
39°
17
47°
38°
18
45°
38°
19
48°
35°
20
44°
40°
21
44°
40°
22
45°
43°
23
45°
41°
24
44°
40°
25
43°
39°
26
42°
39°
27
41°
38°
28
41°
33°
29
40°
32°
30
39°
33°
31
39°
32°
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 39° to 55°, with overnight lows between 32° and 49°. The average high for October is 47° 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 Sunnyside. See also: November | December | January.
