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

40°F

4°C

Humidity 97%
Wind Speed SE 10 mph
Barometer 30.06 in (1018.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 22 Apr 9:56 am EDT
Extended Forecast for

Unionville NY

  • Today

    Today: A slight chance of showers before 11am. Cloudy, with a high near 48. Southeast wind around 6 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Showers then
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 61. Light northwest wind increasing to 6 to 11 mph in the morning.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 59. Light northwest wind.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 36. Chance of precipitation is 20%.

    Low: 36 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 8am. Partly sunny, with a high near 50. Chance of precipitation is 40%.

    High: 50 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of showers before 11am. Cloudy, with a high near 48. Southeast wind around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 39. Calm wind.
Thursday
Sunny, with a high near 61. Light northwest wind increasing to 6 to 11 mph in the morning.
Thursday Night
Increasing clouds, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 59. Light northwest wind.
Friday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 36. Chance of precipitation is 20%.
Saturday
A chance of showers after 8am. Partly sunny, with a high near 50. Chance of precipitation is 40%.
Saturday Night
A chance of showers before 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 61.
Monday Night
A chance of showers. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Tuesday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.54°W (Elev. 1378 ft)
Last Update:
6:12 am EDT Apr 22, 2026
Forecast Valid:
10am EDT Apr 22, 2026-6pm EDT Apr 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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