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

57°F

14°C

Humidity 47%
Wind Speed Vrbl 6 mph
Barometer 30.27 in (1025.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 10 Apr 10:56 am EDT
Extended Forecast for

Long Flat NY

  • Today

    Today: Mostly sunny, with a high near 67. Southwest wind 6 to 9 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Occasional showers, mainly before 1am. Low around 36. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind around 9 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Northwest wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of sprinkles after 2pm. Partly sunny, with a high near 53. Calm wind becoming south 5 to 8 mph in the morning.

    High: 53 °F

    Chance
    Sprinkles

  • Sunday Night

    Sunday Night: A chance of sprinkles. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Sprinkles

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.

    High: 64 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 67. Southwest wind 6 to 9 mph.
Tonight
Occasional showers, mainly before 1am. Low around 36. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind around 9 mph.
Saturday Night
Mostly clear, with a low around 30. Northwest wind around 6 mph becoming calm in the evening.
Sunday
A chance of sprinkles after 2pm. Partly sunny, with a high near 53. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
A chance of sprinkles. Mostly cloudy, with a low around 44.
Monday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
A chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 70.
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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:
2:30 am EDT Apr 10, 2026
Forecast Valid:
11am EDT Apr 10, 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