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.

Mostly Cloudy

40°F

4°C

Humidity 73%
Wind Speed NW 15 G 20 mph
Barometer 29.93 in (1014.4 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 21 Mar 10:56 am EDT
Extended Forecast for

Unionville NY

  • Today

    Today: Sunny, with a high near 49. Northwest wind around 6 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: A slight chance of snow after 2am, mixing with rain after 5am. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 20%.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 60. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely before 5am, then snow likely. Mostly cloudy, with a low around 33. North wind around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Snow showers likely, possibly mixing with rain after 11am, then gradually ending. Partly sunny, with a high near 42. Northwest wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 42 °F

    Rain/Snow
    Likely then
    Slight Chance
    Rain/Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Northwest wind around 6 mph.
Tonight
A slight chance of snow after 2am, mixing with rain after 5am. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 20%.
Sunday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 60. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely before 5am, then snow likely. Mostly cloudy, with a low around 33. North wind around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Snow showers likely, possibly mixing with rain after 11am, then gradually ending. Partly sunny, with a high near 42. Northwest wind 7 to 10 mph. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.
Friday
A chance of rain and snow. Partly sunny, with a high near 42. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.57°W (Elev. 1181 ft)
Last Update:
11:27 am EDT Mar 21, 2026
Forecast Valid:
11am EDT Mar 21, 2026-6pm EDT Mar 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