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

46°F

8°C

Humidity 44%
Wind Speed NW 8 mph
Barometer 30.34 in (1028.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 11 Apr 7:56 pm EDT
Extended Forecast for

Long Flat NY

  • Tonight

    Tonight: Clear, with a low around 28. Northwest wind around 6 mph becoming calm after midnight.

    Low: 28 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 52. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 52 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of showers, mainly between 7pm and 2am. Mostly cloudy, with a low around 44. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Southwest wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. West wind 5 to 9 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 40%.

    High: 74 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 28. Northwest wind around 6 mph becoming calm after midnight.
Sunday
Increasing clouds, with a high near 52. Calm wind becoming south 5 to 9 mph in the afternoon.
Sunday Night
A chance of showers, mainly between 7pm and 2am. Mostly cloudy, with a low around 44. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Monday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Southwest wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. West wind 5 to 9 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Friday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Flat NY
 42.01°N 75.05°W (Elev. 1900 ft)
Last Update:
6:28 pm EDT Apr 11, 2026
Forecast Valid:
8pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
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