S
M
T
W
T
F
S
27
67°
35°
28
68°
37°
29
70°
32°
30
63°
32°
1
64°
29°
2
66°
35°
3
64°
29°
4
64°
30°
5
65°
30°
6
65°
28°
7
66°
27°
8
68°
34°
9
68°
33°
10
67°
33°
11
65°
32°
12
66°
34°
13
57°
33°
14
56°
26°
15
55°
23°
16
55°
24°
17
63°
29°
18
54°
28°
19
52°
25°
20
52°
23°
21
53°
31°
22
52°
29°
23
51°
26°
24
51°
24°
25
50°
32°
26
51°
32°
27
50°
31°
28
50°
29°
29
49°
24°
30
59°
30°
31
59°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sisters
Sisters's October 2026 forecast shows daily high temperatures ranging from 49° to 70°, with overnight lows between 23° and 37°. The average high for October is 59° with an average low of 30°. 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 Sisters. See also: November | December | January.
