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

31°F

-1°C

Humidity 82%
Wind Speed W 8 mph
Barometer 29.67 in (1006.3 mb)
Dewpoint 26°F (-3°C)
Visibility 8.00 mi
Wind Chill24°F (-4°C)
Last update 11 Feb 6:56 am EST
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: Mostly cloudy, with a high near 31. West wind 9 to 13 mph.

    High: 31 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 19. Northwest wind 9 to 11 mph.

    Low: 19 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 28. Northwest wind 10 to 13 mph.

    High: 28 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. Northwest wind 6 to 9 mph.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 30. Northwest wind 6 to 8 mph.

    High: 30 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.

    Low: 15 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 31. West wind 9 to 13 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 19. Northwest wind 9 to 11 mph.
Thursday
Partly sunny, with a high near 28. Northwest wind 10 to 13 mph.
Thursday Night
Partly cloudy, with a low around 11. Northwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 30. Northwest wind 6 to 8 mph.
Friday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Washington's Birthday
A chance of rain and snow showers. Mostly sunny, with a high near 38. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 41.
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:
6:00 am EST Feb 11, 2026
Forecast Valid:
7am EST Feb 11, 2026-6pm EST Feb 17, 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