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.

Fair

28°F

-2°C

Humidity 75%
Wind Speed Calm
Barometer 30.06 in (1019.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 27 Feb 11:56 pm EST
Extended Forecast for

Long Flat NY

  • Overnight

    Overnight: Partly cloudy, with a low around 27. South wind around 6 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 45. South wind around 6 mph becoming northwest in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of snow after 1am. Increasing clouds, with a low around 23. North wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of snow before 1pm. Mostly cloudy, with a high near 28. Northwest wind 5 to 9 mph. Chance of precipitation is 50%. New snow accumulation of around an inch possible.

    High: 28 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 5. Northwest wind 5 to 8 mph.

    Low: 5 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow before 1pm, then rain and snow likely. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.

    High: 34 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain and snow likely, mainly before 1am. Cloudy, with a low around 28. Chance of precipitation is 60%.

    Low: 28 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. South wind around 6 mph.
Saturday
Mostly sunny, with a high near 45. South wind around 6 mph becoming northwest in the afternoon.
Saturday Night
A slight chance of snow after 1am. Increasing clouds, with a low around 23. North wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday
A chance of snow before 1pm. Mostly cloudy, with a high near 28. Northwest wind 5 to 9 mph. Chance of precipitation is 50%. New snow accumulation of around an inch possible.
Sunday Night
Partly cloudy, with a low around 5. Northwest wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 22.
Monday Night
Partly cloudy, with a low around 8.
Tuesday
A chance of snow before 1pm, then rain and snow likely. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
Tuesday Night
Rain and snow likely, mainly before 1am. Cloudy, with a low around 28. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Thursday
Rain likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Thursday Night
Rain or freezing rain likely. Cloudy, with a low around 35. Chance of precipitation is 70%.
Friday
Rain or freezing rain likely. Cloudy, with a high near 44. Chance of precipitation is 60%.
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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:
6:14 pm EST Feb 27, 2026
Forecast Valid:
12am EST Feb 28, 2026-6pm EST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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