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

47°F

8°C

Humidity 48%
Wind Speed S 9 mph
Barometer 30.39 in (1030.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 9 Apr 8:56 pm EDT
Extended Forecast for

Long Flat NY

  • Tonight

    Tonight: Partly cloudy, with a low around 36. South wind 6 to 8 mph.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 66. Southwest wind 5 to 10 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Rain showers before 5am, then a slight chance of rain and snow showers. Low around 36. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Showers then
    Rain/Snow

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 48. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 48 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers before 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. South wind 6 to 8 mph.
Friday
Sunny, with a high near 66. Southwest wind 5 to 10 mph.
Friday Night
Rain showers before 5am, then a slight chance of rain and snow showers. Low around 36. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 48. Northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 70. 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:
7:03 pm EDT Apr 9, 2026
Forecast Valid:
9pm EDT Apr 9, 2026-6pm EDT Apr 16, 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