S
M
T
W
T
F
S
27
52°
42°
28
52°
44°
29
50°
42°
30
50°
44°
1
49°
43°
2
49°
41°
3
48°
42°
4
48°
44°
5
49°
43°
6
48°
46°
7
51°
40°
8
52°
39°
9
47°
40°
10
46°
42°
11
46°
42°
12
47°
40°
13
47°
40°
14
49°
42°
15
50°
44°
16
46°
43°
17
48°
42°
18
48°
43°
19
46°
43°
20
50°
42°
21
49°
43°
22
47°
44°
23
49°
42°
24
49°
41°
25
48°
41°
26
48°
40°
27
47°
39°
28
47°
40°
29
45°
39°
30
43°
39°
31
42°
31°
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 42° to 52°, with overnight lows between 31° and 46°. The average high for October is 48° with an average low of 41°. 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.
