S
M
T
W
T
F
S
31
83°
66°
1
85°
67°
2
88°
68°
3
89°
68°
4
85°
67°
5
84°
68°
6
85°
67°
7
88°
68°
8
89°
69°
9
88°
68°
10
84°
69°
11
84°
69°
12
85°
68°
13
85°
70°
14
84°
70°
15
84°
69°
16
85°
70°
17
85°
70°
18
86°
70°
19
86°
71°
20
87°
70°
21
87°
70°
22
88°
68°
23
87°
69°
24
88°
69°
25
89°
70°
26
87°
69°
27
88°
70°
28
87°
68°
29
88°
68°
30
92°
71°
1
93°
72°
2
93°
72°
3
92°
71°
4
88°
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 83° to 93°, with overnight lows between 66° and 72°. The average high for June is 87° with an average low of 69°. 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.
