S
M
T
W
T
F
S
29
63°
39°
30
86°
48°
31
69°
51°
1
51°
37°
2
68°
37°
3
52°
35°
4
48°
36°
5
55°
32°
6
49°
32°
7
42°
29°
8
74°
39°
9
63°
44°
10
60°
37°
11
61°
56°
12
73°
60°
13
80°
63°
14
79°
55°
15
67°
43°
16
73°
48°
17
68°
45°
18
66°
47°
19
70°
49°
20
69°
46°
21
68°
47°
22
64°
40°
23
58°
46°
24
66°
46°
25
60°
43°
26
59°
38°
27
59°
44°
28
63°
48°
29
69°
50°
30
71°
48°
1
65°
46°
2
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mount Vernon
Mount Vernon's April 2026 forecast shows daily high temperatures ranging from 58° to 80°, with overnight lows between 37° and 63°. The average high for April is 66° with an average low of 47°. 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 Mount Vernon. See also: May | June | July.
