S
M
T
W
T
F
S
27
77°
42°
28
80°
46°
29
79°
48°
30
71°
60°
1
87°
63°
2
70°
49°
3
70°
46°
4
78°
44°
5
72°
43°
6
73°
44°
7
83°
51°
8
77°
46°
9
79°
46°
10
75°
54°
11
77°
54°
12
86°
53°
13
88°
67°
14
75°
63°
15
72°
58°
16
54°
37°
17
56°
34°
18
63°
37°
19
65°
39°
20
68°
40°
21
69°
47°
22
70°
47°
23
71°
46°
24
70°
49°
25
68°
48°
26
60°
43°
27
61°
44°
28
59°
41°
29
60°
40°
30
56°
40°
31
55°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Monticello
Monticello's October 2026 forecast shows daily high temperatures ranging from 54° to 71°, with overnight lows between 34° and 49°. The average high for October is 63° with an average low of 42°. 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 Monticello. See also: November | December | January.
