S
M
T
W
T
F
S
27
51°
47°
28
N/A
29
53°
46°
30
54°
46°
1
52°
45°
2
52°
46°
3
51°
47°
4
52°
47°
5
55°
47°
6
53°
37°
7
50°
47°
8
51°
47°
9
55°
46°
10
55°
45°
11
53°
45°
12
52°
47°
13
48°
38°
14
46°
39°
15
47°
44°
16
47°
44°
17
48°
43°
18
48°
42°
19
49°
42°
20
45°
43°
21
48°
41°
22
45°
40°
23
43°
40°
24
45°
43°
25
48°
42°
26
49°
41°
27
44°
35°
28
42°
37°
29
40°
38°
30
40°
40°
31
42°
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 40° to 55°, with overnight lows between 35° and 47°. The average high for October is 49° with an average low of 43°. 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.
