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.

Fair

25°F

-4°C

Humidity 88%
Wind Speed W 7 mph
Barometer 30.22 in (1025.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 24 Dec 9:56 pm EST
Extended Forecast for

Long Flat NY

Winter Storm Watch December 26, 01:00pm until December 27, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: Partly sunny, with a high near 37. Light and variable wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 7. Wind chill values as low as zero. North wind 6 to 13 mph.

    Low: 7 °F

    Partly Cloudy

  • Friday

    Friday: Snow likely after 1pm. Mostly cloudy, with a high near 23. Wind chill values as low as -2. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    High: 23 °F

    Mostly Cloudy
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Low around 16. Southeast wind around 7 mph. Chance of precipitation is 90%.

    Low: 16 °F

    Heavy Snow

  • Saturday

    Saturday: A chance of snow before 1pm, then a slight chance of snow showers after 1pm. Cloudy, with a high near 28. Chance of precipitation is 50%.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain or freezing rain likely after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.

    High: 34 °F

    Mostly Cloudy
    then
    Rain/Freezing
    Rain Likely

  • Sunday Night

    Sunday Night: Rain or freezing rain before 1am, then snow. Low around 29. Chance of precipitation is 90%.

    Low: 29 °F

    Wintry Mix

Detailed Forecast

Tonight
Mostly cloudy, with a low around 21. Calm wind.
Christmas Day
Partly sunny, with a high near 37. Light and variable wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 7. Wind chill values as low as zero. North wind 6 to 13 mph.
Friday
Snow likely after 1pm. Mostly cloudy, with a high near 23. Wind chill values as low as -2. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of around 2 inches.
Friday Night
Snow. The snow could be heavy at times. Low around 16. Southeast wind around 7 mph. Chance of precipitation is 90%.
Saturday
A chance of snow before 1pm, then a slight chance of snow showers after 1pm. Cloudy, with a high near 28. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Rain or freezing rain likely after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
Sunday Night
Rain or freezing rain before 1am, then snow. Low around 29. Chance of precipitation is 90%.
Monday
Rain and snow showers likely, becoming all snow after 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 70%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 50%.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 20. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Flat NY
 42.01°N 75.05°W (Elev. 1900 ft)
Last Update:
6:18 pm EST Dec 24, 2025
Forecast Valid:
10pm EST Dec 24, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation