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

27°F

-3°C

Humidity 43%
Wind Speed Calm
Barometer 30.51 in (1035.8 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 2 Mar 5:56 pm EST
Extended Forecast for

Tennanah Lake NY

Winter Weather Advisory March 3, 07:00am until March 4, 03:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Increasing clouds, with a low around 13. South wind around 7 mph.

    Low: 13 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Snow before 4pm, then snow, possibly mixed with sleet. High near 32. South wind around 8 mph. Chance of precipitation is 90%. New snow and sleet accumulation of around an inch possible.

    High: 32 °F

    Snow then
    Snow/Sleet

  • Tuesday Night

    Tuesday Night: Freezing rain before 1am, then a chance of rain or freezing rain between 1am and 4am, then a slight chance of rain after 4am. Low around 30. South wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 90%. New ice accumulation of around a 0.2 of an inch possible.

    Low: 30 °F

    Freezing Rain
    then
    Rain/Freezing
    Rain

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 47 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 33. Southeast wind 3 to 5 mph. Chance of precipitation is 50%.

    Low: 33 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.

    High: 45 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Rain. Low around 37. Chance of precipitation is 80%.

    Low: 37 °F

    Rain

  • Friday

    Friday: A chance of showers before 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 13. South wind around 7 mph.
Tuesday
Snow before 4pm, then snow, possibly mixed with sleet. High near 32. South wind around 8 mph. Chance of precipitation is 90%. New snow and sleet accumulation of around an inch possible.
Tuesday Night
Freezing rain before 1am, then a chance of rain or freezing rain between 1am and 4am, then a slight chance of rain after 4am. Low around 30. South wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 90%. New ice accumulation of around a 0.2 of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind around 6 mph becoming calm in the afternoon.
Wednesday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 33. Southeast wind 3 to 5 mph. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.
Thursday Night
Rain. Low around 37. Chance of precipitation is 80%.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Friday Night
A chance of showers after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.
Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 54. Chance of precipitation is 30%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 57. 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:
3:22 pm EST Mar 2, 2026
Forecast Valid:
6pm EST Mar 2, 2026-6pm EDT Mar 9, 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