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

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

-3°F

-19°C

Humidity 79%
Wind Speed Calm
Barometer 30.37 in (1031.7 mb)
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Last update 21 Jan 1:56 am EST
Extended Forecast for

Unionville NY

  • Overnight

    Overnight: Clear, with a low around 1. Calm wind.

    Low: 1 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 26. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph.

    High: 26 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly before 7pm. Mostly cloudy, with a low around 19. West wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 35. West wind 8 to 13 mph, with gusts as high as 29 mph.

    High: 35 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. West wind around 7 mph.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -3.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 9.

    High: 9 °F

    Cold

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around -1. Chance of precipitation is 30%.

    Low: -1 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Clear, with a low around 1. Calm wind.
Wednesday
Increasing clouds, with a high near 26. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
A chance of snow, mainly before 7pm. Mostly cloudy, with a low around 19. West wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 35. West wind 8 to 13 mph, with gusts as high as 29 mph.
Thursday Night
Partly cloudy, with a low around 14. West wind around 7 mph.
Friday
Partly sunny, with a high near 24.
Friday Night
Partly cloudy, with a low around -3.
Saturday
Mostly sunny and cold, with a high near 9.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around -1. Chance of precipitation is 30%.
Sunday
Snow likely, mainly after 1pm. Mostly cloudy, with a high near 12. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 5. Chance of precipitation is 50%.
Monday
A chance of snow. Partly sunny, with a high near 18. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Mostly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.54°W (Elev. 1378 ft)
Last Update:
12:39 am EST Jan 21, 2026
Forecast Valid:
2am EST Jan 21, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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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