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.

Fair

31°F

-1°C

Humidity 92%
Wind Speed W 3 mph
Barometer 30.04 in (1018.8 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 19 Apr 10:56 pm EDT
Extended Forecast for

Tennanah Lake NY

  • Tonight

    Tonight: Scattered snow showers, mainly after 5am. Increasing clouds, with a low around 27. West wind around 7 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 27 °F

    Scattered
    Snow Showers

  • Monday

    Monday: Scattered snow showers, mainly between noon and 5pm. Mostly sunny, with a high near 37. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Scattered
    Snow Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 20. Northwest wind 7 to 11 mph.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 45. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 45 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 34. South wind 6 to 9 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered snow showers, mainly after 5am. Increasing clouds, with a low around 27. West wind around 7 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Monday
Scattered snow showers, mainly between noon and 5pm. Mostly sunny, with a high near 37. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly clear, with a low around 20. Northwest wind 7 to 11 mph.
Tuesday
Increasing clouds, with a high near 45. Light and variable wind becoming southwest around 6 mph in the morning.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 34. South wind 6 to 9 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 62.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Saturday
Showers likely. Partly sunny, with a high near 56. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 56. Chance of precipitation is 40%.
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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:
7:30 pm EDT Apr 19, 2026
Forecast Valid:
11pm EDT Apr 19, 2026-6pm EDT Apr 26, 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