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.

Snow Freezing Fog

30°F

-1°C

Humidity 96%
Wind Speed E 5 mph
Barometer 29.77 in (1009.8 mb)
Dewpoint 29°F (-2°C)
Visibility 0.50 mi
Wind Chill25°F (-4°C)
Last update 2 Dec 1:56 pm EST
Extended Forecast for

Long Flat NY

Winter Weather Advisory December 2, 02:02pm until December 2, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 2, 02:02pm until December 2, 06:00pm

    NOW until 6:00pm Tue

    Winter Weather Advisory

  • This Afternoon

    High: 32 °F

    Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. Northwest wind 6 to 9 mph.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 6 mph becoming calm in the afternoon.

    High: 32 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. South wind 3 to 7 mph.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 29. West wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 29 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Snow, mainly before 4pm. High near 32. Light and variable wind. Chance of precipitation is 90%. Total daytime snow accumulation of around 5 inches.
Tonight
Mostly cloudy, with a low around 18. Northwest wind 6 to 9 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 22. South wind 3 to 7 mph.
Thursday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 29. West wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 5.
Friday
Mostly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 32.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Mostly cloudy, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
A chance of snow showers. Mostly sunny, with a high near 20. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Flat NY
 42.01°N 75.05°W (Elev. 1900 ft)
Last Update:
11:55 am EST Dec 2, 2025
Forecast Valid:
2pm EST Dec 2, 2025-6pm EST Dec 8, 2025
 
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