S
M
T
W
T
F
S
29
68°
37°
30
75°
45°
31
75°
55°
1
84°
59°
2
81°
61°
3
82°
61°
4
82°
59°
5
72°
57°
6
63°
48°
7
72°
43°
8
64°
45°
9
71°
44°
10
79°
47°
11
85°
53°
12
85°
56°
13
82°
57°
14
85°
55°
15
88°
57°
16
88°
56°
17
89°
59°
18
89°
57°
19
82°
54°
20
79°
54°
21
76°
55°
22
82°
46°
23
78°
51°
24
80°
53°
25
81°
53°
26
81°
52°
27
80°
52°
28
75°
50°
29
74°
50°
30
76°
52°
1
79°
53°
2
81°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Monticello
Monticello's April 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 44° and 59°. The average high for April 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 April weather will actually feel in Monticello. See also: May | June | July.
