National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Overcast

24°F

-4°C

Humidity 88%
Wind Speed Calm
Barometer 30.01 in (1018.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 13 Jan 6:56 am EST
Extended Forecast for

Unionville NY

  • Today

    Today: Mostly sunny, with a high near 40. Light and variable wind becoming southwest around 6 mph in the afternoon.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South wind around 6 mph becoming west after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 41. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 41 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain before 1am, then rain and snow likely between 1am and 4am, then snow likely after 4am. Low around 19. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Rain then
    Rain/Snow

  • Thursday

    Thursday: A chance of snow, mainly before 1pm. Partly sunny, with a high near 23. West wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 23 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 40. Light and variable wind becoming southwest around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 32. South wind around 6 mph becoming west after midnight.
Wednesday
A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 41. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
Rain before 1am, then rain and snow likely between 1am and 4am, then snow likely after 4am. Low around 19. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow, mainly before 1pm. Partly sunny, with a high near 23. West wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 34.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 13.
M.L.King Day
Partly sunny, with a high near 23.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.54°W (Elev. 1378 ft)
Last Update:
6:23 am EST Jan 13, 2026
Forecast Valid:
7am EST Jan 13, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation