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 Fog/Mist

31°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 29.66 in (1005.8 mb)
Dewpoint 31°F (-1°C)
Visibility 4.00 mi
Last update 20 Feb 10:56 pm EST
Extended Forecast for

Tennanah Lake NY

Winter Weather Advisory February 20, 11:31pm until February 21, 01:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 20, 11:31pm until February 21, 01:00am

    NOW until 1:00am Sat

    Winter Weather Advisory

  • Tonight

    Low: 29 °F

    Snow Showers
    Likely

  • Saturday

    Saturday: A slight chance of snow showers after 2pm. Mostly cloudy, with a high near 34. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 34 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 24. Light and variable wind becoming east around 6 mph after midnight. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Snow. High near 28. East wind around 8 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.

    High: 28 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely. Mostly cloudy, with a low around 22. East wind 11 to 15 mph becoming north after midnight. Chance of precipitation is 70%.

    Low: 22 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before 1pm, then a chance of snow showers after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.

    High: 29 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

Detailed Forecast

Tonight
Snow showers likely, mainly before 2am. Mostly cloudy, with a low around 29. West wind around 10 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Saturday
A slight chance of snow showers after 2pm. Mostly cloudy, with a high near 34. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.
Saturday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 24. Light and variable wind becoming east around 6 mph after midnight. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 28. East wind around 8 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Sunday Night
Snow likely. Mostly cloudy, with a low around 22. East wind 11 to 15 mph becoming north after midnight. Chance of precipitation is 70%.
Monday
A chance of snow before 1pm, then a chance of snow showers after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 20.
Tuesday Night
A chance of snow after 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.
Wednesday
A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 32.
Basemap Options
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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:
9:21 pm EST Feb 20, 2026
Forecast Valid:
11pm EST Feb 20, 2026-6pm EST Feb 27, 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