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.

Fair

10°F

-12°C

Humidity 73%
Wind Speed Calm
Barometer 29.84 in (1013.0 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 24 Feb 8:56 pm EST
Extended Forecast for

Tennanah Lake NY

  • Tonight

    Tonight: Snow, mainly after 3am. The snow could be heavy at times. Temperature rising to around 20 by 5am. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of around 2 inches.

    Low: 12 °F⇑

    Partly Cloudy
    then Heavy
    Snow

  • Wednesday

    Wednesday: Snow before 1pm, then a slight chance of snow showers between 1pm and 2pm. The snow could be heavy at times. High near 33. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.

    High: 33 °F

    Heavy Snow
    then Slight
    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around 16. West wind 8 to 11 mph. Chance of precipitation is 20%.

    Low: 16 °F

    Slight Chance
    Snow Showers

  • Thursday

    Thursday: A slight chance of snow after 1pm. Mostly sunny, with a high near 30. West wind around 6 mph. Chance of precipitation is 20%.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow. Partly cloudy, with a low around 16. North wind around 6 mph. Chance of precipitation is 20%.

    Low: 16 °F

    Slight Chance
    Snow

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow, mainly after 3am. The snow could be heavy at times. Temperature rising to around 20 by 5am. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of around 2 inches.
Wednesday
Snow before 1pm, then a slight chance of snow showers between 1pm and 2pm. The snow could be heavy at times. High near 33. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Wednesday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 16. West wind 8 to 11 mph. Chance of precipitation is 20%.
Thursday
A slight chance of snow after 1pm. Mostly sunny, with a high near 30. West wind around 6 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 16. North wind around 6 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Partly cloudy, with a low around 9.
Monday
A chance of snow. Partly sunny, with a high near 19. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Tuesday
A chance of snow. Partly sunny, with a high near 27. Chance of precipitation is 30%.
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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:
7:06 pm EST Feb 24, 2026
Forecast Valid:
9pm EST Feb 24, 2026-6pm EST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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