S
M
T
W
T
F
S
27
51°
42°
28
49°
41°
29
49°
41°
30
50°
42°
1
49°
40°
2
48°
39°
3
47°
39°
4
47°
38°
5
48°
38°
6
47°
39°
7
47°
39°
8
46°
38°
9
46°
37°
10
47°
38°
11
46°
40°
12
46°
42°
13
47°
40°
14
46°
40°
15
45°
42°
16
46°
44°
17
46°
44°
18
47°
43°
19
47°
40°
20
46°
36°
21
43°
35°
22
43°
36°
23
44°
41°
24
43°
40°
25
42°
39°
26
44°
40°
27
43°
42°
28
45°
41°
29
43°
38°
30
47°
36°
31
41°
33°
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 41° to 51°, with overnight lows between 33° and 44°. The average high for October is 46° 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.
