S
M
T
W
T
F
S
29
37°
14°
30
45°
28°
31
42°
27°
1
33°
27°
2
32°
29°
3
33°
28°
4
35°
29°
5
48°
28°
6
44°
27°
7
37°
24°
8
35°
21°
9
50°
29°
10
61°
32°
11
41°
32°
12
41°
32°
13
46°
36°
14
41°
32°
15
43°
32°
16
42°
33°
17
43°
31°
18
42°
32°
19
44°
32°
20
45°
35°
21
48°
34°
22
45°
32°
23
46°
33°
24
45°
36°
25
49°
36°
26
46°
35°
27
46°
35°
28
47°
34°
29
47°
34°
30
48°
31°
1
47°
32°
2
48°
36°
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 35° to 61°, with overnight lows between 21° and 36°. The average high for April is 45° with an average low of 32°. 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.
