S
M
T
W
T
F
S
31
76°
50°
1
81°
55°
2
83°
56°
3
83°
56°
4
86°
55°
5
87°
57°
6
85°
56°
7
81°
57°
8
82°
58°
9
83°
51°
10
82°
48°
11
82°
52°
12
87°
53°
13
87°
54°
14
85°
55°
15
79°
47°
16
74°
43°
17
72°
48°
18
73°
47°
19
75°
50°
20
81°
53°
21
81°
53°
22
84°
52°
23
84°
55°
24
85°
55°
25
85°
54°
26
84°
56°
27
84°
55°
28
85°
56°
29
82°
56°
30
85°
55°
1
85°
57°
2
82°
57°
3
83°
56°
4
85°
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 72° to 87°, with overnight lows between 43° and 58°. The average high for June is 82° with an average low of 54°. 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.
