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.

Heavy Snow Freezing Fog

2°F

-17°C

Humidity 88%
Wind Speed E 14 mph
Barometer 30.14 in (1024.2 mb)
Dewpoint -1°F (-18°C)
Visibility 0.25 mi
Wind Chill-16°F (-27°C)
Last update 25 Jan 12:56 pm EST
Extended Forecast for

Tennanah Lake NY

Winter Storm Warning January 25, 01:49pm until January 26, 07:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning January 25, 01:49pm until January 26, 07:00pm

    NOW until 7:00pm Mon

    Winter Storm Warning

  • This Afternoon

    High: 14 °F

    Heavy Snow

  • Tonight

    Tonight: Snow, mainly before 1am. The snow could be heavy at times. Low around 12. Wind chill values as low as -3. East wind 5 to 14 mph. Chance of precipitation is 100%. New snow accumulation of around 5 inches.

    Low: 12 °F

    Heavy Snow

  • Monday

    Monday: Snow showers likely, mainly before 7am. Areas of blowing snow after 1pm. Mostly cloudy, with a high near 18. Wind chill values as low as -2. South wind 6 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 18 °F

    Snow Showers
    Likely and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: A slight chance of snow showers before 1am. Areas of blowing snow before 1am. Mostly cloudy, with a low around 1. Wind chill values as low as -12. Northwest wind 13 to 16 mph. Chance of precipitation is 20%.

    Low: 1 °F

    Slight Chance
    Snow Showers
    and Areas
    Blowing Snow

  • Tuesday

    Tuesday: Partly sunny and cold, with a high near 10. West wind 8 to 10 mph.

    High: 10 °F

    Cold

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 1.

    Low: 1 °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 -3.

    Low: -3 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Snow. The snow could be heavy at times. High near 14. Wind chill values as low as -11. East wind 8 to 10 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around 12 inches.
Tonight
Snow, mainly before 1am. The snow could be heavy at times. Low around 12. Wind chill values as low as -3. East wind 5 to 14 mph. Chance of precipitation is 100%. New snow accumulation of around 5 inches.
Monday
Snow showers likely, mainly before 7am. Areas of blowing snow after 1pm. Mostly cloudy, with a high near 18. Wind chill values as low as -2. South wind 6 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday Night
A slight chance of snow showers before 1am. Areas of blowing snow before 1am. Mostly cloudy, with a low around 1. Wind chill values as low as -12. Northwest wind 13 to 16 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny and cold, with a high near 10. West wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 13.
Wednesday Night
Mostly cloudy, with a low around -3.
Thursday
Partly sunny, with a high near 11.
Thursday Night
Mostly cloudy, with a low around -3.
Friday
Partly sunny and cold, with a high near 8.
Friday Night
Mostly cloudy, with a low around 0.
Saturday
Partly sunny, with a high near 13.
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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:
1:22 pm EST Jan 25, 2026
Forecast Valid:
1pm EST Jan 25, 2026-6pm EST Jan 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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