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.

A Few Clouds

35°F

2°C

Humidity 72%
Wind Speed NW 7 mph
Barometer 29.86 in (1011.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 3 May 2:56 am EDT
Extended Forecast for

Unionville NY

  • Overnight

    Overnight: Patchy frost. Otherwise, mostly clear, with a low around 32. Northwest wind around 5 mph.

    Low: 32 °F

    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 7am. Otherwise, sunny, with a high near 53. Northwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Patchy Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. West wind around 7 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 66. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Light southwest wind.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 40%.

    High: 74 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy frost. Otherwise, mostly clear, with a low around 32. Northwest wind around 5 mph.
Sunday
Patchy frost before 7am. Otherwise, sunny, with a high near 53. Northwest wind 11 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 37. West wind around 7 mph.
Monday
Mostly sunny, with a high near 66. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 48. Light southwest wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Wednesday
Showers. High near 62. Chance of precipitation is 90%.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Thursday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 37. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 54. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 35. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 56. Chance of precipitation is 40%.
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:
2:30 am EDT May 3, 2026
Forecast Valid:
3am EDT May 3, 2026-6pm EDT May 9, 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