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 and Breezy

25°F

-4°C

Humidity 72%
Wind Speed NW 21 G 36 mph
Barometer 29.94 in (1015.6 mb)
Dewpoint 17°F (-8°C)
Visibility 9.00 mi
Wind Chill10°F (-12°C)
Last update 11 Jan 11:56 pm EST
Extended Forecast for

Tennanah Lake NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 20. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32. West wind 10 to 13 mph.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. West wind 7 to 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. West wind 6 to 8 mph becoming south in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 31. South wind around 10 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Wednesday

    Wednesday: A chance of rain and snow showers before 10am, then rain showers likely. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.

    High: 36 °F

    Chance
    Rain/Snow
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Rain showers likely before 10pm, then rain and snow showers likely between 10pm and 1am, then snow showers likely after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 70%.

    Low: 24 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%.

    High: 27 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 13. Chance of precipitation is 50%.

    Low: 13 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 20. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 32. West wind 10 to 13 mph.
Monday Night
Mostly cloudy, with a low around 24. West wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 36. West wind 6 to 8 mph becoming south in the afternoon.
Tuesday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 31. South wind around 10 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain and snow showers before 10am, then rain showers likely. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.
Wednesday Night
Rain showers likely before 10pm, then rain and snow showers likely between 10pm and 1am, then snow showers likely after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 70%.
Thursday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 13. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 21.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Partly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
A chance of snow showers. Partly sunny, with a high near 23. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
Last Update:
12:27 am EST Jan 12, 2026
Forecast Valid:
12am EST Jan 12, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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