S
M
T
W
T
F
S
29
81°
50°
30
83°
65°
31
88°
68°
1
87°
62°
2
83°
68°
3
84°
68°
4
84°
69°
5
72°
58°
6
71°
49°
7
79°
44°
8
80°
51°
9
77°
58°
10
83°
58°
11
84°
60°
12
84°
56°
13
86°
64°
14
85°
62°
15
86°
58°
16
85°
64°
17
86°
65°
18
84°
60°
19
71°
51°
20
75°
47°
21
77°
50°
22
83°
62°
23
84°
61°
24
85°
64°
25
85°
65°
26
88°
70°
27
89°
73°
28
90°
72°
29
87°
71°
30
78°
67°
1
82°
58°
2
69°
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 69° to 90°, with overnight lows between 54° and 73°. The average high for April is 83° with an average low of 66°. 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.
