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.

Unknown Precip Fog/Mist

28°F

-2°C

Humidity 96%
Wind Speed Calm
Barometer 29.97 in (1017.0 mb)
Dewpoint 27°F (-3°C)
Visibility 5.00 mi
Last update 18 Jan 10:56 am EST
Extended Forecast for

4 Miles NE Grooville NY

Winter Weather Advisory until January 18, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 18, 10:00pm

    NOW until 10:00pm Sun

    Winter Weather Advisory

  • This Afternoon

    High: 27 °F

    Snow

  • Tonight

    Tonight: Snow before 10pm, then a chance of snow showers between 10pm and 2am. Low around 9. Wind chill values as low as zero. North wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 9 °F

    Snow then
    Chance Snow
    Showers

  • M.L.King Day

    M.L.King Day: A chance of snow showers, mainly after 5pm. Mostly cloudy, with a high near 19. Wind chill values as low as zero. Southwest wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 19 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -12. West wind 14 to 16 mph, with gusts as high as 29 mph.

    Low: 2 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny and cold, with a high near 9. West wind around 13 mph, with gusts as high as 25 mph.

    High: 9 °F

    Cold

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Snow. High near 27. West wind around 5 mph becoming north. Chance of precipitation is 80%. Total daytime snow accumulation of around 3 inches.
Tonight
Snow before 10pm, then a chance of snow showers between 10pm and 2am. Low around 9. Wind chill values as low as zero. North wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
M.L.King Day
A chance of snow showers, mainly after 5pm. Mostly cloudy, with a high near 19. Wind chill values as low as zero. Southwest wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -12. West wind 14 to 16 mph, with gusts as high as 29 mph.
Tuesday
Partly sunny and cold, with a high near 9. West wind around 13 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around -1.
Wednesday
Partly sunny, with a high near 20.
Wednesday Night
Mostly cloudy, with a low around 14.
Thursday
A chance of snow showers. Partly sunny, with a high near 27. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 4.
Friday
Partly sunny, with a high near 15.
Friday Night
Mostly cloudy, with a low around 4.
Saturday
A chance of snow showers. Partly sunny, with a high near 13. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Grooville NY
 41.99°N 74.7°W (Elev. 2782 ft)
Last Update:
12:10 pm EST Jan 18, 2026
Forecast Valid:
12pm EST Jan 18, 2026-6pm EST Jan 24, 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