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.

Mostly Cloudy

22°F

-6°C

Humidity 71%
Wind Speed W 7 G 16 mph
Barometer 29.73 in (1008.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 31 Dec 9:56 am EST
Extended Forecast for

Tennanah Lake NY

  • Today

    Today: A slight chance of snow showers before 3pm, then a slight chance of snow showers after 5pm. Mostly cloudy, with a high near 22. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 22 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: Snow showers, mainly after 7pm. Low around 10. Southwest wind 9 to 13 mph becoming northwest after midnight. Chance of precipitation is 80%. New snow accumulation of around 2 inches.

    Low: 10 °F

    Snow Showers

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 15. Wind chill values as low as -5. Northwest wind 11 to 14 mph.

    High: 15 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 5. Wind chill values as low as -8. West wind 8 to 10 mph.

    Low: 5 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 20. West wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 20 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly 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 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of snow showers before 3pm, then a slight chance of snow showers after 5pm. Mostly cloudy, with a high near 22. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.
Tonight
Snow showers, mainly after 7pm. Low around 10. Southwest wind 9 to 13 mph becoming northwest after midnight. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
New Year's Day
Partly sunny, with a high near 15. Wind chill values as low as -5. Northwest wind 11 to 14 mph.
Thursday Night
Partly cloudy, with a low around 5. Wind chill values as low as -8. West wind 8 to 10 mph.
Friday
A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 20. West wind 7 to 10 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 20.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Partly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
A chance of snow showers. Mostly cloudy, with a high near 24. 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 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
Last Update:
4:58 am EST Dec 31, 2025
Forecast Valid:
10am EST Dec 31, 2025-6pm EST Jan 6, 2026
 
Forecast Discussion
 
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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