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

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fair

-14°F

-26°C

Humidity 82%
Wind Speed E 6 mph
Barometer 30.27 in (1026.7 mb)
Dewpoint -18°F (-28°C)
Visibility 10.00 mi
Wind Chill-29°F (-34°C)
Last update 8 Dec 11:56 pm EST
Extended Forecast for

2 Miles ENE Henderson Harbor NY

Winter Storm Watch December 10, 04:00am until December 11, 07:00am
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: A slight chance of snow showers after 1am. Mostly cloudy, with a temperature rising to around 5 by 5am. Wind chill values as low as -10. South wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: -2 °F⇑

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A chance of snow, mainly after 5pm. Mostly cloudy, with a high near 29. Wind chill values as low as -5. South wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    High: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow showers likely before 8pm, then a chance of snow after 5am. Cloudy, with a temperature rising to around 30 by 4am. South wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 23 °F⇑

    Snow Showers
    Likely

  • Wednesday

    Wednesday: Rain, possibly mixed with snow. High near 38. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after 10pm. Low around 18. Southwest wind around 14 mph becoming west in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 18 °F

    Rain/Snow
    then Snow
    Showers

  • Thursday

    Thursday: Snow showers likely. Mostly cloudy, with a high near 26. West wind 13 to 15 mph. Chance of precipitation is 70%.

    High: 26 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 14. West wind around 11 mph. Chance of precipitation is 50%.

    Low: 14 °F

    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow showers. Partly sunny, with a high near 29. West wind around 10 mph. Chance of precipitation is 30%.

    High: 29 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Showers
    Likely

Detailed Forecast

Overnight
A slight chance of snow showers after 1am. Mostly cloudy, with a temperature rising to around 5 by 5am. Wind chill values as low as -10. South wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday
A chance of snow, mainly after 5pm. Mostly cloudy, with a high near 29. Wind chill values as low as -5. South wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow showers likely before 8pm, then a chance of snow after 5am. Cloudy, with a temperature rising to around 30 by 4am. South wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Rain, possibly mixed with snow. High near 38. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Rain and snow showers, becoming all snow after 10pm. Low around 18. Southwest wind around 14 mph becoming west in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Snow showers likely. Mostly cloudy, with a high near 26. West wind 13 to 15 mph. Chance of precipitation is 70%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 14. West wind around 11 mph. Chance of precipitation is 50%.
Friday
A chance of snow showers. Partly sunny, with a high near 29. West wind around 10 mph. Chance of precipitation is 30%.
Friday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Saturday
Snow showers likely. Mostly cloudy, with a high near 30. Chance of precipitation is 70%.
Saturday Night
Snow showers likely. Mostly cloudy, with a low around 14. Chance of precipitation is 60%.
Sunday
A chance of snow showers. Partly sunny, with a high near 23. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 4. Chance of precipitation is 30%.
Monday
A chance of snow showers. Mostly cloudy, with a high near 21. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Henderson Harbor NY
 43.87°N 76.12°W (Elev. 390 ft)
Last Update:
12:35 am EST Dec 9, 2025
Forecast Valid:
12am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation