S
M
T
W
T
F
S
27
51°
42°
28
50°
43°
29
50°
43°
30
51°
44°
1
49°
42°
2
49°
41°
3
48°
40°
4
48°
39°
5
49°
39°
6
48°
44°
7
48°
44°
8
49°
41°
9
47°
40°
10
47°
38°
11
46°
37°
12
46°
39°
13
47°
41°
14
47°
37°
15
45°
38°
16
45°
38°
17
46°
42°
18
46°
39°
19
44°
38°
20
43°
38°
21
44°
37°
22
43°
35°
23
42°
35°
24
41°
34°
25
42°
34°
26
45°
37°
27
45°
38°
28
43°
39°
29
44°
34°
30
43°
33°
31
40°
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 40° to 51°, with overnight lows between 32° and 44°. The average high for October is 46° with an average low of 39°. 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.
