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

5°F

-15°C

Humidity 49%
Wind Speed NW 12 mph
Barometer 30.55 in (1038.2 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 24 Jan 5:56 pm EST
Extended Forecast for

Tennanah Lake NY

Winter Storm Warning January 25, 01:00am until January 26, 07:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: Mostly cloudy, with a low around -3. Wind chill values as low as -14. North wind 5 to 7 mph becoming light and variable.

    Low: -3 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow, mainly after 7am. The snow could be heavy at times. High near 11. Wind chill values as low as -11. East wind 7 to 10 mph. Chance of precipitation is 100%. New snow accumulation of around 10 inches.

    High: 11 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 10. Wind chill values as low as -6. East wind 7 to 13 mph. Chance of precipitation is 100%. New snow accumulation of around 5 inches.

    Low: 10 °F

    Heavy Snow

  • Monday

    Monday: Snow showers. Areas of blowing snow after 1pm. High near 18. Wind chill values as low as -2. Northwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 18 °F

    Snow Showers
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around 1. West wind 14 to 16 mph. Chance of precipitation is 20%.

    Low: 1 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A slight chance of snow showers. Partly sunny and cold, with a high near 9. Chance of precipitation is 20%.

    High: 9 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around -3.

    Low: -3 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 13.

    High: 13 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around -3. Wind chill values as low as -14. North wind 5 to 7 mph becoming light and variable.
Sunday
Snow, mainly after 7am. The snow could be heavy at times. High near 11. Wind chill values as low as -11. East wind 7 to 10 mph. Chance of precipitation is 100%. New snow accumulation of around 10 inches.
Sunday Night
Snow. The snow could be heavy at times. Low around 10. Wind chill values as low as -6. East wind 7 to 13 mph. Chance of precipitation is 100%. New snow accumulation of around 5 inches.
Monday
Snow showers. Areas of blowing snow after 1pm. High near 18. Wind chill values as low as -2. Northwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 1. West wind 14 to 16 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of snow showers. Partly sunny and cold, with a high near 9. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around -3.
Wednesday
Partly sunny, with a high near 13.
Wednesday Night
Mostly cloudy, with a low around -1.
Thursday
Mostly cloudy and cold, with a high near 10.
Thursday Night
Mostly cloudy, with a low around -2.
Friday
Mostly cloudy, with a high near 11.
Friday Night
Mostly cloudy, with a low around 3.
Saturday
Partly sunny, with a high near 16.
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:
5:56 pm EST Jan 24, 2026
Forecast Valid:
6pm EST Jan 24, 2026-6pm EST Jan 31, 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