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.

Fair

6°F

-14°C

Humidity 80%
Wind Speed W 10 mph
Barometer 29.90 in (1015.8 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill-8°F (-22°C)
Last update 27 Jan 10:56 pm EST
Extended Forecast for

Upper Mongaup NY

  • Tonight

    Tonight: Mostly clear, with a low around -1. Wind chill values as low as -14. West wind around 9 mph.

    Low: -1 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 17. Wind chill values as low as -14. West wind around 7 mph.

    High: 17 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -4. Wind chill values as low as -17. Northwest wind around 6 mph.

    Low: -4 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 15. Wind chill values as low as -18. Northwest wind 7 to 9 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -6. Northwest wind 8 to 10 mph.

    Low: -6 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 11.

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -7.

    Low: -7 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 1 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around -1. Wind chill values as low as -14. West wind around 9 mph.
Wednesday
Increasing clouds, with a high near 17. Wind chill values as low as -14. West wind around 7 mph.
Wednesday Night
Partly cloudy, with a low around -4. Wind chill values as low as -17. Northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 15. Wind chill values as low as -18. Northwest wind 7 to 9 mph.
Thursday Night
Mostly clear, with a low around -6. Northwest wind 8 to 10 mph.
Friday
Mostly sunny, with a high near 11.
Friday Night
Mostly clear, with a low around -7.
Saturday
Mostly sunny, with a high near 17.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 1. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 21. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 9.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Mostly sunny, with a high near 26.
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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:
6:01 pm EST Jan 27, 2026
Forecast Valid:
10pm EST Jan 27, 2026-6pm EST Feb 3, 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