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.

Overcast

25°F

-4°C

Humidity 72%
Wind Speed SE 3 mph
Barometer 30.01 in (1018.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 21 Jan 10:56 pm EST
Extended Forecast for

Unionville NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 20. West wind around 6 mph.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of snow showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 35. West wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow Showers
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. West wind around 6 mph.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 25. West wind 7 to 11 mph, with gusts as high as 25 mph.

    High: 25 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -1. Northwest wind 8 to 10 mph, with gusts as high as 22 mph.

    Low: -1 °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 40%.

    Low: 1 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow. High near 13. Chance of precipitation is 80%.

    High: 13 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely. Mostly cloudy, with a low around 7. Chance of precipitation is 70%.

    Low: 7 °F

    Snow Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 20. West wind around 6 mph.
Thursday
A slight chance of snow showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 35. West wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 14. West wind around 6 mph.
Friday
Mostly sunny, with a high near 25. West wind 7 to 11 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around -1. Northwest wind 8 to 10 mph, with gusts as high as 22 mph.
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 40%.
Sunday
Snow. High near 13. Chance of precipitation is 80%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 7. Chance of precipitation is 70%.
Monday
A chance of snow. Partly sunny, with a high near 19. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Mostly sunny, with a high near 18.
Tuesday Night
Partly cloudy, with a low around 5.
Wednesday
Partly 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:
3:47 pm EST Jan 21, 2026
Forecast Valid:
11pm EST Jan 21, 2026-6pm EST Jan 28, 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