S
M
T
W
T
F
S
29
54°
21°
30
68°
41°
31
77°
59°
1
68°
45°
2
45°
37°
3
64°
37°
4
75°
45°
5
54°
39°
6
50°
34°
7
41°
28°
8
50°
23°
9
63°
37°
10
74°
45°
11
63°
35°
12
65°
52°
13
80°
58°
14
78°
58°
15
83°
59°
16
81°
53°
17
78°
46°
18
67°
41°
19
64°
46°
20
69°
47°
21
67°
45°
22
65°
38°
23
57°
36°
24
58°
45°
25
58°
45°
26
57°
40°
27
58°
38°
28
59°
39°
29
59°
38°
30
60°
38°
1
61°
47°
2
70°
47°
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 57° to 83°, with overnight lows between 35° and 59°. The average high for April is 66° with an average low of 45°. 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.
