S
M
T
W
T
F
S
29
71°
25°
30
74°
55°
31
82°
63°
1
80°
62°
2
84°
54°
3
83°
64°
4
82°
62°
5
63°
45°
6
66°
31°
7
60°
31°
8
73°
45°
9
77°
42°
10
78°
50°
11
77°
50°
12
85°
65°
13
82°
60°
14
86°
61°
15
86°
58°
16
79°
54°
17
82°
56°
18
76°
56°
19
75°
58°
20
76°
61°
21
79°
45°
22
69°
47°
23
70°
52°
24
74°
53°
25
73°
51°
26
70°
48°
27
67°
47°
28
66°
48°
29
74°
53°
30
76°
55°
1
72°
54°
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 66° to 86°, with overnight lows between 42° and 65°. The average high for April is 76° 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.
