Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Overcast

23°F

-5°C

Humidity 72%
Wind Speed S 7 mph
Barometer 29.77 in (1010.2 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 10 Dec 12:56 am EST
Extended Forecast for

Upper Mongaup NY

Winter Weather Advisory December 10, 04:00am until December 11, 01:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Overnight

    Overnight: Mostly cloudy, with a low around 19. South wind around 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow and freezing rain, becoming all snow after 9am.  High near 35. South wind 6 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. Little or no ice accumulation expected.  New snow accumulation of less than a half inch possible.

    High: 35 °F

    Wintry Mix
    then Snow

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers before 1am.  Mostly cloudy, with a low around 21. Southwest wind 7 to 11 mph becoming west after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Snow Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 29. West wind 13 to 15 mph, with gusts as high as 31 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. West wind around 11 mph, with gusts as high as 23 mph.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow showers after 1am.  Mostly cloudy, with a low around 15. Chance of precipitation is 30%.

    Low: 15 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow showers after 1am.  Mostly cloudy, with a low around 21. Chance of precipitation is 40%.

    Low: 21 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 19. South wind around 6 mph.
Wednesday
Snow and freezing rain, becoming all snow after 9am. High near 35. South wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Wednesday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 21. Southwest wind 7 to 11 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 29. West wind 13 to 15 mph, with gusts as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 17. West wind around 11 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 30.
Friday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Sunday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 28.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.77°W (Elev. 1201 ft)
12:00 am EST Dec 10, 2025
1am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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