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

31°F

-1°C

Humidity 96%
Wind Speed E 5 mph
Barometer 30.06 in (1019.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 21 Feb 11:56 pm EST
Extended Forecast for

Swan Lake NY

Winter Storm Warning February 22, 01:00pm until February 23, 07:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Overnight

    Overnight: A chance of snow, mainly after 5am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Sunday

    Sunday: Snow. High near 32. East wind 5 to 7 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 32 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 23. North wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of around 8 inches.

    Low: 23 °F

    Heavy Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. The snow could be heavy at times. Mostly cloudy, with a high near 30. North wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of around 3 inches.

    High: 30 °F

    Heavy Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow after 1am. Mostly cloudy, with a low around 9. Chance of precipitation is 50%.

    Low: 9 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.

    High: 36 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow, mainly after 5am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow. High near 32. East wind 5 to 7 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 23. North wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of around 8 inches.
Monday
Snow likely, mainly before 1pm. The snow could be heavy at times. Mostly cloudy, with a high near 30. North wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of around 3 inches.
Monday Night
Mostly cloudy, with a low around 12. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.
Tuesday
Partly sunny, with a high near 21.
Tuesday Night
A chance of snow after 1am. Mostly cloudy, with a low around 9. Chance of precipitation is 50%.
Wednesday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Swan Lake NY
 41.76°N 74.8°W (Elev. 1404 ft)
Last Update:
11:52 pm EST Feb 21, 2026
Forecast Valid:
12am EST Feb 22, 2026-6pm EST Feb 28, 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