National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow Will Impact St. Lawrence County This Evening and Tonight

A Winter Weather Advisory is in effect from 1 PM today to 5 AM Tuesday for lake effect snow in southern St. Lawrence County. Total snow accumulations between 2 and 5 inches are expected. Plan on slippery road conditions. Strong winds will cause blowing snow and further reduce visibilities. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Drum / Wheeler-Sack U. S. Army Airfield (KGTB)

Lat: 44.05°NLon: 75.73°WElev: 679ft.

Light Snow

19°F

-7°C

Humidity 83%
Wind Speed W 16 G 23 mph
Barometer 29.81 in (1010.5 mb)
Dewpoint 15°F (-9°C)
Visibility 2.00 mi
Wind Chill4°F (-16°C)
Last update 19 Jan 8:55 pm EST
Extended Forecast for

2 Miles ENE Harrisville NY

Winter Weather Advisory until January 20, 05:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 20, 05:00am

    NOW until 5:00am Tue

    Winter Weather Advisory

  • Tonight

    Low: 4 °F

    Snow Showers
    and Areas
    Blowing Snow

  • Tuesday

    Tuesday: Snow showers likely, mainly before 1pm. Partly sunny, with a high near 13. Wind chill values as low as -6. West wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 13 °F

    Snow Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 4. Southwest wind around 6 mph. New snow accumulation of less than a half inch possible.

    Low: 4 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly after 1pm. High near 27. Wind chill values as low as -2. South wind 7 to 10 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 27 °F

    Chance Snow
    then Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 20. South wind around 11 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow

  • Thursday

    Thursday: Snow showers. High near 27. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 27 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 5. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow showers. Partly sunny, with a high near 11. West wind 6 to 9 mph.

    High: 11 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Snow showers, mainly before 4am. Areas of blowing snow between 10pm and 1am. Low around 4. Wind chill values as low as -6. West wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.
Tuesday
Snow showers likely, mainly before 1pm. Partly sunny, with a high near 13. Wind chill values as low as -6. West wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 30 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 4. Southwest wind around 6 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly after 1pm. High near 27. Wind chill values as low as -2. South wind 7 to 10 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow. Low around 20. South wind around 11 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow showers. High near 27. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 5. West wind 6 to 10 mph, with gusts as high as 20 mph.
Friday
A 50 percent chance of snow showers. Partly sunny, with a high near 11. West wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around -17. West wind 6 to 8 mph.
Saturday
Mostly sunny and cold, with a high near -4. West wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around -19. Calm wind.
Sunday
Mostly sunny and cold, with a high near 4. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around -13. Light and variable wind.
Monday
Partly sunny and cold, with a high near 10. Calm wind becoming southwest around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Harrisville NY
 44.17°N 75.27°W (Elev. 945 ft)
Last Update:
8:49 pm EST Jan 19, 2026
Forecast Valid:
9pm EST Jan 19, 2026-6pm EST Jan 26, 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