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

20°F

-7°C

Humidity 78%
Wind Speed W 20 G 30 mph
Barometer 29.48 in (999.6 mb)
Dewpoint 14°F (-10°C)
Visibility 9.00 mi
Wind Chill4°F (-16°C)
Last update 30 Dec 3:56 am EST
Extended Forecast for

Tennanah Lake NY

Wind Advisory December 30, 04:51am until December 30, 07:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 30, 04:51am until December 30, 07:00pm

    NOW until 7:00pm Tue

    Wind Advisory

  • Overnight

    Low: 15 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday

    Tuesday: A chance of snow showers, mainly before 3pm. Patchy blowing snow before 1pm, then patchy blowing snow after 2pm. Cloudy, with a high near 19. Wind chill values as low as -4. Breezy, with a west wind 18 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 19 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before 10pm. Patchy blowing snow before 9pm. Mostly cloudy, with a low around 16. Wind chill values as low as zero. Breezy, with a west wind 13 to 21 mph. Chance of precipitation is 20%.

    Low: 16 °F

    Slight Chance
    Snow Showers
    and Patchy
    Blowing Snow

  • Wednesday

    Wednesday: A chance of snow showers after 1pm. Cloudy, with a high near 22. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Cloudy then
    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow showers. Low around 11. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 11 °F

    Snow Showers

  • New Year's Day

    New Year's Day: A slight chance of snow showers before 1pm. Partly sunny, with a high near 17. Chance of precipitation is 20%.

    High: 17 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 19.

    High: 19 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow showers. Mostly cloudy, with a low around 15. Wind chill values as low as -1. Breezy, with a west wind around 25 mph, with gusts as high as 38 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of around an inch possible.
Tuesday
A chance of snow showers, mainly before 3pm. Patchy blowing snow before 1pm, then patchy blowing snow after 2pm. Cloudy, with a high near 19. Wind chill values as low as -4. Breezy, with a west wind 18 to 25 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
A slight chance of snow showers before 10pm. Patchy blowing snow before 9pm. Mostly cloudy, with a low around 16. Wind chill values as low as zero. Breezy, with a west wind 13 to 21 mph. Chance of precipitation is 20%.
Wednesday
A chance of snow showers after 1pm. Cloudy, with a high near 22. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers. Low around 11. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 80%.
New Year's Day
A slight chance of snow showers before 1pm. Partly sunny, with a high near 17. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 5.
Friday
Mostly cloudy, with a high near 19.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
Partly sunny, with a high near 21.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Partly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
A chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
Last Update:
11:49 pm EST Dec 29, 2025
Forecast Valid:
4am EST Dec 30, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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