S
M
T
W
T
F
S
31
84°
66°
1
85°
65°
2
88°
67°
3
89°
68°
4
89°
68°
5
88°
69°
6
89°
69°
7
89°
68°
8
90°
69°
9
90°
70°
10
89°
69°
11
90°
70°
12
90°
70°
13
89°
69°
14
90°
70°
15
90°
70°
16
89°
69°
17
85°
70°
18
86°
68°
19
87°
70°
20
89°
70°
21
87°
71°
22
90°
72°
23
91°
72°
24
91°
71°
25
90°
71°
26
87°
71°
27
87°
72°
28
89°
71°
29
92°
72°
30
93°
73°
1
92°
72°
2
92°
70°
3
93°
70°
4
92°
71°
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 84° to 93°, with overnight lows between 65° 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.
