S
M
T
W
T
F
S
27
71°
39°
28
73°
38°
29
77°
46°
30
74°
49°
1
76°
45°
2
80°
44°
3
81°
45°
4
80°
44°
5
82°
43°
6
80°
44°
7
80°
42°
8
79°
45°
9
73°
35°
10
63°
40°
11
62°
28°
12
64°
28°
13
62°
38°
14
70°
34°
15
68°
34°
16
66°
37°
17
65°
37°
18
64°
38°
19
65°
38°
20
66°
37°
21
61°
34°
22
65°
39°
23
64°
37°
24
63°
38°
25
63°
37°
26
62°
36°
27
62°
36°
28
61°
37°
29
61°
36°
30
60°
37°
31
56°
36°
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 56° to 79°, with overnight lows between 28° and 45°. The average high for October is 64° with an average low of 36°. 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.
