S
M
T
W
T
F
S
29
68°
35°
30
42°
37°
31
53°
37°
1
50°
34°
2
43°
31°
3
56°
28°
4
67°
34°
5
70°
40°
6
74°
41°
7
68°
41°
8
66°
35°
9
70°
36°
10
58°
43°
11
59°
42°
12
45°
37°
13
50°
37°
14
55°
33°
15
47°
28°
16
42°
27°
17
53°
25°
18
66°
38°
19
71°
44°
20
78°
44°
21
66°
44°
22
53°
36°
23
51°
34°
24
60°
36°
25
63°
40°
26
61°
37°
27
65°
40°
28
64°
39°
29
69°
40°
30
67°
40°
1
63°
35°
2
56°
37°
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 51° to 78°, with overnight lows between 34° and 44°. The average high for April is 64° with an average low of 39°. 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.
