S
M
T
W
T
F
S
27
77°
46°
28
78°
48°
29
80°
55°
30
87°
66°
1
82°
63°
2
75°
60°
3
73°
59°
4
69°
52°
5
68°
46°
6
67°
47°
7
69°
47°
8
70°
48°
9
69°
50°
10
71°
47°
11
63°
46°
12
72°
52°
13
71°
43°
14
61°
40°
15
61°
42°
16
67°
47°
17
71°
50°
18
71°
50°
19
70°
51°
20
71°
50°
21
71°
46°
22
59°
41°
23
59°
42°
24
65°
48°
25
69°
49°
26
69°
47°
27
61°
42°
28
62°
47°
29
67°
49°
30
64°
49°
31
66°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sullivan
Sullivan's October 2026 forecast shows daily high temperatures ranging from 59° to 87°, with overnight lows between 40° and 66°. The average high for October is 69° with an average low of 49°. 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 Sullivan. See also: November | December | January.
