S
M
T
W
T
F
S
1
56°
35°
2
41°
36°
3
75°
40°
4
76°
56°
5
66°
58°
6
80°
55°
7
69°
48°
8
59°
44°
9
72°
43°
10
81°
63°
11
74°
40°
12
52°
36°
13
63°
41°
14
68°
36°
15
76°
39°
16
39°
26°
17
33°
22°
18
61°
29°
19
75°
38°
20
81°
46°
21
81°
50°
22
88°
44°
23
54°
37°
24
62°
36°
25
77°
40°
26
86°
65°
27
74°
35°
28
56°
33°
29
73°
34°
30
78°
59°
31
85°
65°
1
85°
64°
2
83°
67°
3
85°
67°
4
73°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Mount Vernon
Mount Vernon's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Mount Vernon. See also: April | May | June.
