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.

Overcast

59°F

15°C

Humidity 90%
Wind Speed SW 9 mph
Barometer 29.53 in (999.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Mar 3:56 am EDT
Extended Forecast for

Unionville NY

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Cloudy, with a low around 33. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 33 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain and snow showers likely before 3pm, then a slight chance of snow showers. Mostly cloudy, with a temperature falling to around 34 by 9am. Northwest wind 11 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 40 °F⇓

    Rain/Snow
    Likely then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 22. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Friday

    Friday: A slight chance of snow showers before 2pm, then a chance of rain and snow showers. Increasing clouds, with a high near 40. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Slight Chance
    Snow Showers
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 29. South wind around 8 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.

    High: 42 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of rain before 8pm, then a chance of rain and snow between 8pm and 2am, then rain likely after 2am. Cloudy, with a low around 34. Chance of precipitation is 70%.

    Low: 34 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 33. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain and snow showers likely before 3pm, then a slight chance of snow showers. Mostly cloudy, with a temperature falling to around 34 by 9am. Northwest wind 11 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 22. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.
Friday
A slight chance of snow showers before 2pm, then a chance of rain and snow showers. Increasing clouds, with a high near 40. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 29. South wind around 8 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
A chance of snow before 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
Sunday Night
A chance of rain before 8pm, then a chance of rain and snow between 8pm and 2am, then rain likely after 2am. Cloudy, with a low around 34. Chance of precipitation is 70%.
Monday
Rain. High near 58. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 32.
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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:
3:28 am EDT Mar 12, 2026
Forecast Valid:
4am EDT Mar 12, 2026-6pm EDT Mar 18, 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