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.

Light Snow

32°F

0°C

Humidity 96%
Wind Speed W 3 mph
Barometer 30.04 in (1018.9 mb)
Dewpoint 31°F (-1°C)
Visibility 8.00 mi
Last update 21 Feb 7:56 pm EST
Extended Forecast for

Mongaup Valley NY

Winter Storm Warning February 22, 01:00pm until February 23, 07:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: A chance of snow after 4am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow. High near 30. East wind 3 to 7 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 30 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 22. North wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of around 6 inches.

    Low: 22 °F

    Heavy Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Areas of blowing snow before 1pm. Cloudy, with a high near 32. North wind around 16 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of around 3 inches.

    High: 32 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Northwest wind 13 to 15 mph, with gusts as high as 29 mph.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow after 1am. Mostly cloudy, with a low around 7. Chance of precipitation is 30%.

    Low: 7 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.

    High: 35 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: A chance of snow before 1am, then a chance of rain. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of snow after 4am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow. High near 30. East wind 3 to 7 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 22. North wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of around 6 inches.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow before 1pm. Cloudy, with a high near 32. North wind around 16 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of around 3 inches.
Monday Night
Mostly cloudy, with a low around 12. Northwest wind 13 to 15 mph, with gusts as high as 29 mph.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
A chance of snow after 1am. Mostly cloudy, with a low around 7. Chance of precipitation is 30%.
Wednesday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.
Wednesday Night
A chance of snow before 1am, then a chance of rain. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 50%.
Friday
A chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 18.
Saturday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
3:22 pm EST Feb 21, 2026
Forecast Valid:
8pm EST Feb 21, 2026-6pm EST Feb 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation