S
M
T
W
T
F
S
31
82°
72°
1
90°
72°
2
90°
67°
3
83°
59°
4
84°
63°
5
87°
66°
6
88°
69°
7
89°
69°
8
90°
70°
9
87°
71°
10
84°
69°
11
86°
71°
12
88°
70°
13
88°
71°
14
85°
70°
15
86°
69°
16
89°
71°
17
89°
70°
18
91°
71°
19
91°
72°
20
90°
72°
21
92°
71°
22
92°
73°
23
91°
73°
24
92°
72°
25
88°
73°
26
92°
72°
27
92°
73°
28
91°
72°
29
88°
73°
30
89°
72°
1
91°
72°
2
91°
71°
3
92°
73°
4
91°
73°
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 83° to 92°, with overnight lows between 59° and 73°. The average high for June is 89° with an average low of 70°. 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.
