S
M
T
W
T
F
S
29
53°
18°
30
68°
32°
31
73°
49°
1
64°
41°
2
41°
37°
3
68°
35°
4
66°
41°
5
50°
37°
6
45°
32°
7
40°
22°
8
50°
18°
9
56°
30°
10
70°
41°
11
52°
29°
12
57°
43°
13
69°
55°
14
75°
54°
15
77°
55°
16
65°
46°
17
63°
43°
18
61°
40°
19
58°
43°
20
62°
42°
21
60°
40°
22
61°
34°
23
52°
32°
24
53°
40°
25
53°
40°
26
54°
37°
27
53°
35°
28
55°
35°
29
54°
36°
30
55°
35°
1
56°
43°
2
65°
42°
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 52° to 77°, with overnight lows between 29° and 55°. The average high for April is 60° with an average low of 40°. 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.
