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
89°
67°
16
96°
73°
17
99°
72°
18
94°
68°
19
90°
66°
20
90°
64°
21
93°
63°
22
96°
61°
23
93°
62°
24
94°
62°
25
94°
64°
26
93°
63°
27
95°
64°
28
90°
57°
29
92°
63°
30
92°
62°
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 57° and 73°. The average high for June is 92° 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.
