National Weather Service Forecast for: Mount Vernon NY
Issued by: National Weather Service New York, NY
Updated: 12:00 pm EDT May 26, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 81. Light and variable wind becoming east around 5 mph.
Mostly Sunny

Tonight

Tonight: Mostly cloudy, with a low around 63. Southwest wind around 6 mph.
Mostly Cloudy

Wednesday

Wednesday: Mostly cloudy, with a high near 84. Southwest wind 5 to 9 mph.
Mostly Cloudy

Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms before 11pm.  Mostly cloudy, with a low around 64. West wind around 7 mph becoming northwest after midnight.
Slight Chance
T-storms then
Mostly Cloudy
Thursday

Thursday: Mostly sunny, with a high near 76. Northwest wind 9 to 15 mph.
Mostly Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 57.
Mostly Clear

Friday

Friday: Mostly sunny, with a high near 75.
Mostly Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 56.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 72.
Mostly Sunny

Hi 81 °F Lo 63 °F Hi 84 °F Lo 64 °F Hi 76 °F Lo 57 °F Hi 75 °F Lo 56 °F Hi 72 °F

 

This Afternoon
 
Mostly sunny, with a high near 81. Light and variable wind becoming east around 5 mph.
Tonight
 
Mostly cloudy, with a low around 63. Southwest wind around 6 mph.
Wednesday
 
Mostly cloudy, with a high near 84. Southwest wind 5 to 9 mph.
Wednesday Night
 
A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 64. West wind around 7 mph becoming northwest after midnight.
Thursday
 
Mostly sunny, with a high near 76. Northwest wind 9 to 15 mph.
Thursday Night
 
Mostly clear, with a low around 57.
Friday
 
Mostly sunny, with a high near 75.
Friday Night
 
Partly cloudy, with a low around 56.
Saturday
 
Mostly sunny, with a high near 72.
Saturday Night
 
Partly cloudy, with a low around 54.
Sunday
 
Mostly sunny, with a high near 73.
Sunday Night
 
Partly cloudy, with a low around 57.
Monday
 
Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Mount Vernon NY.