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

23°F

-5°C

Humidity 81%
Wind Speed E 6 mph
Barometer 29.66 in (1006.4 mb)
Dewpoint 18°F (-8°C)
Visibility 6.00 mi
Wind Chill16°F (-9°C)
Last update 10 Dec 6:56 am EST
Extended Forecast for

Rock Valley NY

Winter Weather Advisory until December 11, 01:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 11, 01:00am

    NOW until 1:00am Thu

    Winter Weather Advisory

  • Today

    High: 34 °F

    Snow Likely
    then Snow

  • Tonight

    Tonight: Snow likely, mainly before 8pm. Mostly cloudy, with a low around 18. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Snow Likely

  • Thursday

    Thursday: A chance of snow showers after 1pm. Partly sunny, with a high near 22. West wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 22 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around 16. West wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 16 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: Partly sunny, with a high near 26. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 26 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.

    Low: 12 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.

    High: 28 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 50%.

    Low: 16 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Snow. High near 34. South wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around 2 inches.
Tonight
Snow likely, mainly before 8pm. Mostly cloudy, with a low around 18. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers after 1pm. Partly sunny, with a high near 22. West wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 16. West wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 26. West wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 50%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 22. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 19.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 9. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rock Valley NY
 41.9°N 75.07°W (Elev. 1821 ft)
Last Update:
5:48 am EST Dec 10, 2025
Forecast Valid:
7am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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