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.

Overcast

32°F

0°C

Humidity 92%
Wind Speed W 6 mph
Barometer 29.89 in (1013.6 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 21 Feb 8:56 am EST
Extended Forecast for

Upper Mongaup NY

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

  • Today

    Today: Mostly cloudy, with a high near 39. West wind 3 to 6 mph.

    High: 39 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of snow, mainly after 5am. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow, mainly after 7am. High near 32. East wind 6 to 8 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.

    High: 32 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 24. North wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of around 6 inches.

    Low: 24 °F

    Heavy Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 33. Breezy, with a north wind 17 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    High: 33 °F

    Snow Likely
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.

    High: 34 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 39. West wind 3 to 6 mph.
Tonight
A chance of snow, mainly after 5am. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday
Snow, mainly after 7am. High near 32. East wind 6 to 8 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.
Sunday Night
Snow. The snow could be heavy at times. Low around 24. North wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of around 6 inches.
Monday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 33. Breezy, with a north wind 17 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Partly sunny, with a high near 24.
Tuesday Night
Mostly cloudy, with a low around 10.
Wednesday
A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Thursday
A chance of rain. Partly sunny, with a high near 40. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
6:08 am EST Feb 21, 2026
Forecast Valid:
9am EST Feb 21, 2026-6pm EST Feb 27, 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