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

21°F

-6°C

Humidity 81%
Wind Speed SW 3 mph
Barometer 30.46 in (1033.5 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 29 Mar 3:56 am EDT
Extended Forecast for

Unionville NY

  • Today

    Today: Mostly sunny, with a high near 50. Light west wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58. West wind 5 to 13 mph.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 48. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 67. Southwest wind 5 to 9 mph. Chance of precipitation is 50%.

    High: 67 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.

    Low: 40 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 50. Chance of precipitation is 50%.

    High: 50 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 50. Light west wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Tonight
Partly cloudy, with a low around 35. Light and variable wind.
Monday
Partly sunny, with a high near 58. West wind 5 to 13 mph.
Monday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 48. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers. Mostly cloudy, with a high near 67. Southwest wind 5 to 9 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 50. Chance of precipitation is 50%.
Thursday Night
Rain showers likely before 2am, then rain or freezing rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Friday
Rain or freezing rain likely. Mostly cloudy, with a high near 50. Chance of precipitation is 70%.
Friday Night
Showers likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.
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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:
2:30 am EDT Mar 29, 2026
Forecast Valid:
4am EDT Mar 29, 2026-6pm EDT Apr 4, 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