National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Light Snow

21°F

-6°C

Humidity 88%
Wind Speed Calm
Barometer 29.62 in (1005.3 mb)
Dewpoint 18°F (-8°C)
Visibility 9.00 mi
Last update 25 Feb 7:56 am EST
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: A chance of snow before 9am. Mostly cloudy, with a high near 38. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tonight

    Tonight: A slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 18. West wind around 6 mph. Chance of precipitation is 20%.

    Low: 18 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33. West wind 3 to 6 mph.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 12. Calm wind.

    Low: 12 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 41. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

Detailed Forecast

Today
A chance of snow before 9am. Mostly cloudy, with a high near 38. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 18. West wind around 6 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 33. West wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 12. Calm wind.
Friday
Sunny, with a high near 41. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
A chance of snow. Partly sunny, with a high near 24. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 5. Chance of precipitation is 30%.
Tuesday
A chance of snow. Mostly sunny, with a high near 29. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
4:59 am EST Feb 25, 2026
Forecast Valid:
8am EST Feb 25, 2026-6pm EST Mar 3, 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