Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

27°F

-3°C

Humidity 43%
Wind Speed Calm
Barometer 30.51 in (1035.8 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 2 Mar 5:56 pm EST
Extended Forecast for

Mongaup Valley NY

Winter Weather Advisory March 3, 07:00am until March 4, 03:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Increasing clouds, with a low around 13. Light east wind.

    Low: 13 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of snow before 9am, then snow, possibly mixed with freezing rain between 9am and 11am, then snow after 11am.  High near 33. Calm wind becoming southeast around 6 mph in the afternoon.  Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible.  New snow accumulation of less than one inch possible.

    High: 33 °F

    Wintry Mix
    then Snow

  • Tuesday Night

    Tuesday Night: Rain or freezing rain before 4am, then a slight chance of rain.  Low around 29. Calm wind.  Chance of precipitation is 90%. New ice accumulation of around a 0.1 of an inch possible.

    Low: 29 °F

    Rain/Freezing
    Rain

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 1am.  Mostly cloudy, with a low around 33. Calm wind.  Chance of precipitation is 50%.

    Low: 33 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers.  Mostly cloudy, with a high near 47. Chance of precipitation is 50%.

    High: 47 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Rain.  Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Rain

  • Friday

    Friday: A chance of showers before 1pm.  Mostly cloudy, with a high near 49. Chance of precipitation is 40%.

    High: 49 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 13. Light east wind.
Tuesday
A chance of snow before 9am, then snow, possibly mixed with freezing rain between 9am and 11am, then snow after 11am. High near 33. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of less than one inch possible.
Tuesday Night
Rain or freezing rain before 4am, then a slight chance of rain. Low around 29. Calm wind. Chance of precipitation is 90%. New ice accumulation of around a 0.1 of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 50. Light and variable wind.
Wednesday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.
Thursday Night
Rain. Low around 36. Chance of precipitation is 80%.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 61.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
3:22 pm EST Mar 2, 2026
6pm EST Mar 2, 2026-6pm EDT Mar 9, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database