S
M
T
W
T
F
S
31
85°
70°
1
85°
71°
2
86°
72°
3
87°
72°
4
87°
71°
5
86°
72°
6
85°
73°
7
86°
73°
8
86°
72°
9
87°
73°
10
88°
72°
11
87°
73°
12
88°
73°
13
89°
74°
14
87°
74°
15
88°
73°
16
88°
74°
17
87°
74°
18
87°
72°
19
88°
74°
20
90°
74°
21
87°
73°
22
88°
74°
23
88°
75°
24
89°
75°
25
89°
74°
26
91°
73°
27
93°
73°
28
93°
73°
29
92°
72°
30
93°
73°
1
94°
72°
2
93°
73°
3
92°
73°
4
91°
72°
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 85° to 94°, with overnight lows between 70° and 75°. The average high for June is 89° with an average low of 73°. 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.
