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

36°F

2°C

Humidity 57%
Wind Speed NW 20 G 25 mph
Barometer 30.19 in (1024.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 20 Apr 4:56 pm EDT
Extended Forecast for

Unionville NY

  • This Afternoon

    This Afternoon: A slight chance of showers. Mostly sunny, with a high near 41. Northwest wind around 8 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 22. Northwest wind around 6 mph becoming calm in the evening.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 50 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow showers before 8am, then a slight chance of rain showers. Partly sunny, with a high near 55. Light south wind. Chance of precipitation is 30%.

    High: 55 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Mostly sunny, with a high near 41. Northwest wind around 8 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 22. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A chance of rain showers before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow showers before 8am, then a slight chance of rain showers. Partly sunny, with a high near 55. Light south wind. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 63.
Friday Night
A chance of showers after 2am. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Sunday
A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 60.
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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:
4:39 pm EDT Apr 20, 2026
Forecast Valid:
5pm EDT Apr 20, 2026-6pm EDT Apr 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