S
M
T
W
T
F
S
31
74°
59°
1
75°
62°
2
74°
63°
3
79°
63°
4
79°
62°
5
81°
64°
6
81°
63°
7
78°
64°
8
76°
63°
9
78°
62°
10
80°
65°
11
82°
65°
12
83°
66°
13
84°
66°
14
84°
67°
15
83°
67°
16
85°
66°
17
85°
67°
18
84°
67°
19
86°
68°
20
85°
69°
21
86°
67°
22
87°
68°
23
87°
67°
24
88°
60°
25
82°
61°
26
81°
60°
27
82°
62°
28
83°
61°
29
81°
62°
30
81°
65°
1
82°
69°
2
87°
63°
3
88°
62°
4
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Monticello
Monticello's June 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 59° and 69°. The average high for June is 82° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Monticello. See also: July | August | September.
