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.

Fair

41°F

5°C

Humidity 51%
Wind Speed S 8 mph
Barometer 29.82 in (1011.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 13 Jan 2:56 pm EST
Extended Forecast for

Unionville NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 40. South wind around 6 mph.

    High: 40 °F

    Partly 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 chance of rain, mainly after 11am. Mostly cloudy, with a high near 41. Southwest wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 4am. Low around 17. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 17 °F

    Rain/Snow

  • Thursday

    Thursday: A slight chance of snow before 1pm. Partly sunny, with a high near 22. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 22 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 40. South wind around 6 mph.
Tonight
Mostly cloudy, with a low around 32. South wind around 6 mph becoming west after midnight.
Wednesday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 41. Southwest wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain and snow, becoming all snow after 4am. Low around 17. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday
A slight chance of snow before 1pm. Partly sunny, with a high near 22. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 7.
Friday
Mostly sunny, with a high near 25.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Partly sunny, with a high near 34.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 11.
M.L.King Day
Partly sunny, with a high near 22.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.54°W (Elev. 1378 ft)
Last Update:
3:23 pm EST Jan 13, 2026
Forecast Valid:
3pm EST Jan 13, 2026-6pm EST Jan 19, 2026
 
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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