S
M
T
W
T
F
S
31
76°
50°
1
77°
51°
2
83°
56°
3
82°
55°
4
83°
55°
5
84°
57°
6
83°
56°
7
79°
55°
8
79°
49°
9
78°
46°
10
83°
52°
11
85°
52°
12
83°
50°
13
84°
52°
14
79°
50°
15
74°
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 85°, with overnight lows between 43° and 57°. The average high for June is 81° 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.
