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.

Overcast

35°F

2°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.45 in (998.6 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 14 Jan 7:56 pm EST
Extended Forecast for

Tennanah Lake NY

  • Tonight

    Tonight: Snow showers, possibly mixed with rain, mainly before 5am. Low around 26. South wind around 7 mph becoming southwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

    Low: 26 °F

    Rain/Snow

  • Thursday

    Thursday: A chance of snow showers, mainly before 2pm. Mostly cloudy, with a temperature falling to around 17 by 5pm. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    High: 27 °F⇓

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 10. Wind chill values as low as -7. West wind around 15 mph.

    Low: 10 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 23. Wind chill values as low as -5. Northwest wind 8 to 14 mph becoming southwest in the afternoon.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18. South wind 8 to 10 mph.

    Low: 18 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow showers, mainly after 1pm. Partly sunny, with a high near 30. Chance of precipitation is 50%.

    High: 30 °F

    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

  • Saturday Night

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

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow showers, possibly mixed with rain, mainly before 5am. Low around 26. South wind around 7 mph becoming southwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.
Thursday
A chance of snow showers, mainly before 2pm. Mostly cloudy, with a temperature falling to around 17 by 5pm. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Thursday Night
Mostly cloudy, with a low around 10. Wind chill values as low as -7. West wind around 15 mph.
Friday
Mostly sunny, with a high near 23. Wind chill values as low as -5. Northwest wind 8 to 14 mph becoming southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 18. South wind 8 to 10 mph.
Saturday
A chance of snow showers, mainly after 1pm. Partly sunny, with a high near 30. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Partly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 9.
M.L.King Day
Partly sunny, with a high near 19.
Monday Night
Mostly cloudy, with a low around 4.
Tuesday
Partly sunny, with a high near 12.
Tuesday Night
Partly cloudy, with a low around 2.
Wednesday
Partly sunny, with a high near 16.
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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:
5:11 pm EST Jan 14, 2026
Forecast Valid:
8pm EST Jan 14, 2026-6pm EST Jan 21, 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