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

4°F

-16°C

Humidity 60%
Wind Speed NW 5 mph
Barometer 30.55 in (1038.0 mb)
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 24 Jan 10:56 pm EST
Extended Forecast for

Upper Mongaup NY

Winter Storm Warning January 25, 01:00am until January 26, 07:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: A chance of snow after 5am. Cloudy, with a low around 2. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 2 °F

    Chance Snow

  • Sunday

    Sunday: Snow, mainly after 7am. The snow could be heavy at times. High near 12. Wind chill values as low as -7. East wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of around 10 inches.

    High: 12 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow before 10pm, then snow, possibly mixed with sleet between 10pm and 4am, then snow after 4am. Temperature rising to around 17 by 4am. Wind chill values as low as -5. Northeast wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around 4 inches.

    Low: 9 °F⇑

    Snow/Sleet

  • Monday

    Monday: Snow before 7am, then snow showers likely, mainly between 7am and 10am. Areas of blowing snow after 1pm. High near 22. Northwest wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 22 °F

    Snow then
    Chance Snow
    Showers and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 3. West wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 14.

    High: 14 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 18.

    High: 18 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow after 5am. Cloudy, with a low around 2. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow, mainly after 7am. The snow could be heavy at times. High near 12. Wind chill values as low as -7. East wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of around 10 inches.
Sunday Night
Snow before 10pm, then snow, possibly mixed with sleet between 10pm and 4am, then snow after 4am. Temperature rising to around 17 by 4am. Wind chill values as low as -5. Northeast wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around 4 inches.
Monday
Snow before 7am, then snow showers likely, mainly between 7am and 10am. Areas of blowing snow after 1pm. High near 22. Northwest wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday Night
Partly cloudy, with a low around 3. West wind 11 to 15 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 14.
Tuesday Night
Partly cloudy, with a low around -2.
Wednesday
Mostly sunny, with a high near 18.
Wednesday Night
Mostly cloudy, with a low around -1.
Thursday
Partly sunny, with a high near 14.
Thursday Night
Mostly cloudy, with a low around 0.
Friday
Partly sunny, with a high near 15.
Friday Night
Mostly cloudy, with a low around 5.
Saturday
Partly sunny, with a high near 20.
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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:
5:56 pm EST Jan 24, 2026
Forecast Valid:
11pm EST Jan 24, 2026-6pm EST Jan 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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