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

23°F

-5°C

Humidity 72%
Wind Speed W 7 mph
Barometer 29.81 in (1011.5 mb)
Dewpoint 15°F (-9°C)
Visibility 9.00 mi
Wind Chill15°F (-9°C)
Last update 19 Jan 2:56 pm EST
Extended Forecast for

Tennanah Lake NY

  • M.L.King Day

    M.L.King Day: Mostly cloudy, with a high near 21. Southwest wind 11 to 13 mph, with gusts as high as 24 mph.

    High: 21 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of snow showers, mainly before 9pm. The snow could be heavy at times. Partly cloudy, with a low around 4. Wind chill values as low as -10. West wind 13 to 16 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 4 °F

    Heavy Snow
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 11. Wind chill values as low as -12. West wind 11 to 13 mph, with gusts as high as 25 mph.

    High: 11 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 0. Wind chill values as low as -12. West wind 6 to 9 mph.

    Low: 0 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 23. South wind 6 to 13 mph.

    High: 23 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Thursday Night

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

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 17.

    High: 17 °F

    Partly Sunny

Detailed Forecast

M.L.King Day
Mostly cloudy, with a high near 21. Southwest wind 11 to 13 mph, with gusts as high as 24 mph.
Tonight
A chance of snow showers, mainly before 9pm. The snow could be heavy at times. Partly cloudy, with a low around 4. Wind chill values as low as -10. West wind 13 to 16 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday
Mostly sunny, with a high near 11. Wind chill values as low as -12. West wind 11 to 13 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 0. Wind chill values as low as -12. West wind 6 to 9 mph.
Wednesday
Partly sunny, with a high near 23. South wind 6 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Partly sunny, with a high near 31.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 17.
Friday Night
Mostly cloudy, with a low around -3.
Saturday
Partly sunny and cold, with a high near 5.
Saturday Night
Mostly cloudy, with a low around -4.
Sunday
Partly sunny and cold, with a high near 7.
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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:
3:23 pm EST Jan 19, 2026
Forecast Valid:
3pm EST Jan 19, 2026-6pm EST Jan 25, 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