S
M
T
W
T
F
S
31
73°
52°
1
72°
51°
2
70°
47°
3
71°
50°
4
74°
53°
5
74°
54°
6
73°
53°
7
74°
53°
8
72°
50°
9
67°
47°
10
68°
54°
11
74°
56°
12
75°
55°
13
71°
54°
14
69°
52°
15
67°
50°
16
69°
50°
17
70°
51°
18
73°
56°
19
70°
48°
20
72°
50°
21
76°
51°
22
79°
57°
23
78°
58°
24
73°
51°
25
76°
52°
26
74°
56°
27
74°
55°
28
75°
58°
29
81°
59°
30
80°
54°
1
80°
53°
2
77°
52°
3
75°
58°
4
78°
57°
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 67° to 81°, with overnight lows between 47° and 59°. The average high for June is 74° with an average low of 53°. 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.
