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.

Fog/Mist

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 29.94 in (1013.0 mb)
Dewpoint 56°F (13°C)
Visibility 6.00 mi
Last update 15 Apr 5:56 am EDT
Extended Forecast for

Sundown NY

  • Today

    Today: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a chance of showers between 2am and 5am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers before 7am, then a chance of showers after 2pm. Partly sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a chance of showers between 2am and 5am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers before 7am, then a chance of showers after 2pm. Partly sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 68.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
Sunday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Sunday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 25.
Tuesday
Sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Sundown NY
 41.89°N 74.45°W (Elev. 1864 ft)
Last Update:
6:20 am EDT Apr 15, 2026
Forecast Valid:
6am EDT Apr 15, 2026-6pm EDT Apr 21, 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