National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Light Snow and Breezy

13°F

-11°C

Humidity 74%
Wind Speed W 21 G 25 mph
Barometer 29.54 in (1002.6 mb)
Dewpoint 6°F (-14°C)
Visibility 9.00 mi
Wind Chill-5°F (-21°C)
Last update 16 Jan 3:56 am EST
Extended Forecast for

Tennanah Lake NY

  • Today

    Today: Mostly sunny, with a high near 22. Wind chill values as low as -8. Northwest wind 8 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 31 mph.

    High: 22 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of snow showers, mainly between 1am and 5am. Increasing clouds, with a low around 19. South wind 7 to 9 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: Snow showers likely, mainly after 7am. Mostly cloudy, with a high near 28. South wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 28 °F

    Snow Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. Southwest wind around 7 mph.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow showers. Mostly cloudy, with a high near 24. West wind around 7 mph. Chance of precipitation is 20%.

    High: 24 °F

    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny and cold, with a high near 9.

    High: 9 °F

    Cold

Detailed Forecast

Today
Mostly sunny, with a high near 22. Wind chill values as low as -8. Northwest wind 8 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 31 mph.
Tonight
A chance of snow showers, mainly between 1am and 5am. Increasing clouds, with a low around 19. South wind 7 to 9 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Saturday
Snow showers likely, mainly after 7am. Mostly cloudy, with a high near 28. South wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday Night
Mostly cloudy, with a low around 20. Southwest wind around 7 mph.
Sunday
A slight chance of snow showers. Mostly cloudy, with a high near 24. West wind around 7 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Partly sunny, with a high near 22.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Partly sunny and cold, with a high near 9.
Tuesday Night
Partly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 18.
Wednesday Night
Mostly cloudy, with a low around 13.
Thursday
A chance of snow showers. Partly sunny, with a high near 26. Chance of precipitation is 30%.
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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:
12:55 am EST Jan 16, 2026
Forecast Valid:
4am EST Jan 16, 2026-6pm EST Jan 22, 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