S
M
T
W
T
F
S
31
93°
61°
1
95°
59°
2
97°
64°
3
87°
61°
4
80°
60°
5
91°
59°
6
96°
59°
7
96°
71°
8
97°
69°
9
97°
72°
10
101°
71°
11
100°
74°
12
100°
72°
13
96°
67°
14
96°
67°
15
92°
66°
16
99°
65°
17
98°
76°
18
94°
71°
19
95°
70°
20
97°
66°
21
99°
69°
22
96°
64°
23
97°
64°
24
97°
63°
25
98°
66°
26
98°
68°
27
97°
68°
28
96°
66°
29
91°
64°
30
92°
59°
1
91°
61°
2
86°
61°
3
89°
60°
4
90°
62°
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 86° to 99°, with overnight lows between 59° and 76°. The average high for June is 95° with an average low of 65°. 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.
