S
M
T
W
T
F
S
31
86°
58°
1
90°
58°
2
91°
63°
3
85°
62°
4
89°
58°
5
93°
65°
6
93°
58°
7
93°
62°
8
92°
66°
9
92°
67°
10
96°
58°
11
97°
62°
12
96°
69°
13
95°
71°
14
83°
64°
15
91°
59°
16
97°
63°
17
100°
64°
18
96°
66°
19
97°
65°
20
98°
64°
21
96°
63°
22
95°
61°
23
100°
66°
24
98°
72°
25
85°
62°
26
87°
60°
27
94°
63°
28
93°
59°
29
88°
60°
30
85°
62°
1
85°
61°
2
83°
60°
3
82°
62°
4
85°
63°
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 82° to 94°, with overnight lows between 59° and 63°. The average high for June is 87° with an average low of 61°. 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.
