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Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

38°F

3°C

Humidity 83%
Wind Speed Calm
Barometer 30.00 in (1016.3 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 10 Mar 4:56 am EDT
Extended Forecast for

Long Flat NY

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A chance of rain and thunderstorms before 10pm, then a slight chance of rain after 4am. Partly cloudy, with a low around 49. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 49 °F

    Chance Rain
    then Partly
    Cloudy

  • Wednesday

    Wednesday: A chance of rain before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers after 5pm. High near 66. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance Rain
    then Showers

  • Wednesday Night

    Wednesday Night: Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 5am, then rain and possibly a thunderstorm after 5am. Low around 33. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 33 °F

    Showers

  • Thursday

    Thursday: Rain, possibly mixed with snow showers before 8am, then a chance of snow showers between 8am and 2pm. High near 35. Northwest wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 35 °F

    Rain/Snow
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 2pm. Partly sunny, with a high near 38. Chance of precipitation is 40%.

    High: 38 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.

    Low: 27 °F

    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
A chance of rain and thunderstorms before 10pm, then a slight chance of rain after 4am. Partly cloudy, with a low around 49. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
A chance of rain before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers after 5pm. High near 66. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 5am, then rain and possibly a thunderstorm after 5am. Low around 33. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain, possibly mixed with snow showers before 8am, then a chance of snow showers between 8am and 2pm. High near 35. Northwest wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Thursday Night
Partly cloudy, with a low around 23.
Friday
A chance of snow after 2pm. Partly sunny, with a high near 38. Chance of precipitation is 40%.
Friday Night
A chance of snow before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
A chance of snow after 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 47. Chance of precipitation is 40%.
Sunday Night
Rain. Low around 34. Chance of precipitation is 80%.
Monday
Rain and snow. High near 46. Chance of precipitation is 80%.
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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:
4:57 am EDT Mar 10, 2026
Forecast Valid:
5am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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