National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Rain Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed E 12 mph
Barometer 30.29 in (1026.2 mb)
Dewpoint 39°F (4°C)
Visibility 6.00 mi
Wind Chill32°F (0°C)
Last update 2 Apr 3:56 am EDT
Extended Forecast for

Long Flat NY

Flood Watch April 2, 04:45am until April 2, 08:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 2, 04:45am until April 2, 08:00am

    NOW until 8:00am Thu

    Flood Watch

  • Overnight

    Low: 41 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 10am. Mostly cloudy, with a high near 42. Southeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly between 7pm and 5am. Mostly cloudy, with a low around 39. Southeast wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 7am, then a slight chance of showers after 2pm. Mostly cloudy, with a high near 67. South wind around 9 mph. Chance of precipitation is 20%.

    High: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, mainly after 2pm. Partly sunny, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers, mainly after 2am. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Showers before 2pm. High near 57. Chance of precipitation is 80%.

    High: 57 °F

    Showers

Detailed Forecast

Overnight
Showers likely, mainly before 5am. Mostly cloudy, with a low around 41. Southeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 42. Southeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A chance of showers, mainly between 7pm and 5am. Mostly cloudy, with a low around 39. Southeast wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers before 7am, then a slight chance of showers after 2pm. Mostly cloudy, with a high near 67. South wind around 9 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 49. Southwest wind 5 to 7 mph becoming northwest after midnight.
Saturday
Showers likely, mainly after 2pm. Partly sunny, with a high near 65. Chance of precipitation is 60%.
Saturday Night
Showers, mainly after 2am. Low around 46. Chance of precipitation is 80%.
Sunday
Showers before 2pm. High near 57. Chance of precipitation is 80%.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
A chance of snow showers. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Sunny, with a high near 46.
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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:
2:30 am EDT Apr 2, 2026
Forecast Valid:
4am EDT Apr 2, 2026-6pm EDT Apr 8, 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