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

20°F

-7°C

Humidity 78%
Wind Speed Calm
Barometer 30.00 in (1018.6 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 5 Dec 7:56 pm EST
Extended Forecast for

Long Flat NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. South wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 33. Southwest wind 3 to 6 mph.

    High: 33 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 31. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.

    High: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 13. Light and variable wind becoming northwest 5 to 8 mph in the evening. Chance of precipitation is 40%.

    Low: 13 °F

    Chance Snow

  • Monday

    Monday: Mostly sunny, with a high near 19.

    High: 19 °F

    Mostly Sunny

  • Monday Night

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

    Low: 5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow showers after 1pm. Partly sunny, with a high near 25. Chance of precipitation is 40%.

    High: 25 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.

    Low: 19 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 18. South wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 33. Southwest wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 22. Southwest wind around 5 mph becoming northwest after midnight.
Sunday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 31. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Sunday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 13. Light and variable wind becoming northwest 5 to 8 mph in the evening. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 19.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
A chance of snow showers after 1pm. Partly sunny, with a high near 25. Chance of precipitation is 40%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.
Wednesday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.
Wednesday Night
Snow showers. Low around 25. Chance of precipitation is 80%.
Thursday
Snow showers likely. Mostly cloudy, with a high near 31. Chance of precipitation is 60%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.
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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:
3:22 pm EST Dec 5, 2025
Forecast Valid:
8pm EST Dec 5, 2025-6pm EST Dec 12, 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