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

19°F

-7°C

Humidity 71%
Wind Speed W 10 mph
Barometer 29.71 in (1008.3 mb)
Dewpoint 11°F (-12°C)
Visibility 9.00 mi
Wind Chill8°F (-13°C)
Last update 31 Dec 7:56 am EST
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: Mostly cloudy, with a high near 26. West wind 7 to 9 mph.

    High: 26 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow showers, mainly after 9pm. Low around 12. Southwest wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 12 °F

    Snow Showers

  • New Year's Day

    New Year's Day: Cloudy through mid morning, then clearing, with a high near 20. Wind chill values as low as zero. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 20 °F

    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 6. Wind chill values as low as -2. West wind around 6 mph.

    Low: 6 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 24. Light west wind increasing to 5 to 9 mph in the morning.

    High: 24 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 26. West wind 7 to 9 mph.
Tonight
Snow showers, mainly after 9pm. Low around 12. Southwest wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
New Year's Day
Cloudy through mid morning, then clearing, with a high near 20. Wind chill values as low as zero. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 6. Wind chill values as low as -2. West wind around 6 mph.
Friday
Partly sunny, with a high near 24. Light west wind increasing to 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Partly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 9.
Monday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 30%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 33.
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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:
4:58 am EST Dec 31, 2025
Forecast Valid:
8am EST Dec 31, 2025-6pm EST Jan 6, 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