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.

Fog/Mist

28°F

-2°C

Humidity 92%
Wind Speed SE 10 mph
Barometer 29.84 in (1012.7 mb)
Dewpoint 26°F (-3°C)
Visibility 5.00 mi
Wind Chill19°F (-7°C)
Last update 28 Dec 7:56 pm EST
Extended Forecast for

Tennanah Lake NY

Wind Advisory December 29, 01:00pm until December 30, 07:00pm
Winter Weather Advisory December 28, 08:18pm until December 29, 04:00am
Click here for hazard details and duration
Wind Advisory
Winter Weather Advisory
  •  
    Winter Weather Advisory December 28, 08:18pm until December 29, 04:00am

    NOW until 4:00am Mon

    Winter Weather Advisory

  • Tonight

    Low: 28 °F

    Freezing Rain
    and Patchy
    Fog

  • Monday

    Monday: Rain before 11am, then a slight chance of showers between 11am and 2pm. Areas of fog before noon. High near 43. South wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain and
    Areas Fog
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 16. Wind chill values as low as zero. Breezy, with a west wind 15 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday

    Tuesday: A chance of snow showers, mainly before 1pm. Mostly cloudy, with a high near 20. Wind chill values as low as -1. Breezy, with a west wind 14 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. West wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow showers, mainly after 1pm. Mostly cloudy, with a high near 25. Chance of precipitation is 50%.

    High: 25 °F

    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: A chance of snow showers. Mostly cloudy, with a low around 10. Chance of precipitation is 50%.

    Low: 10 °F

    Chance Snow
    Showers

  • New Year's Day

    New Year's Day: A chance of snow showers. Partly sunny, with a high near 17. Chance of precipitation is 30%.

    High: 17 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Freezing rain, mainly before 1am. Patchy fog. Low around 28. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of around a 0.1 of an inch possible.
Monday
Rain before 11am, then a slight chance of showers between 11am and 2pm. Areas of fog before noon. High near 43. South wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 16. Wind chill values as low as zero. Breezy, with a west wind 15 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday
A chance of snow showers, mainly before 1pm. Mostly cloudy, with a high near 20. Wind chill values as low as -1. Breezy, with a west wind 14 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly cloudy, with a low around 17. West wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
A chance of snow showers, mainly after 1pm. Mostly cloudy, with a high near 25. Chance of precipitation is 50%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 10. Chance of precipitation is 50%.
New Year's Day
A chance of snow showers. Partly sunny, with a high near 17. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 7.
Friday
Partly sunny, with a high near 19.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Mostly sunny, with a high near 25.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.89°N 74.98°W (Elev. 2001 ft)
Last Update:
7:55 pm EST Dec 28, 2025
Forecast Valid:
8pm EST Dec 28, 2025-6pm EST Jan 4, 2026
 
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Additional Resources

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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