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

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Hazardous Weather Conditions

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Mostly Cloudy

27°F

-3°C

Humidity 36%
Wind Speed S 10 G 17 mph
Barometer 29.95 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 9 Dec 12:55 pm EST
Extended Forecast for

2 Miles ENE Palmyra NY

  • This Afternoon

    This Afternoon: Snow showers likely, mainly between 3pm and 5pm. Cloudy, with a high near 30. South wind 11 to 13 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 30 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: A chance of snow showers between 4am and 5am, then snow likely after 5am. Cloudy, with a low around 25. South wind 8 to 13 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Cloudy then
    Snow Likely

  • Wednesday

    Wednesday: Rain and snow, becoming all rain after noon. High near 39. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Snow, possibly mixed with rain, becoming all snow after 9pm. Low around 20. West wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 20 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow showers, mainly before 7am. High near 26. West wind 15 to 17 mph. Chance of precipitation is 80%.

    High: 26 °F

    Snow Showers
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 20. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 20 °F

    Chance Snow
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 31. West wind 8 to 10 mph.

    High: 31 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 19. Southwest wind around 6 mph. Chance of precipitation is 40%.

    Low: 19 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.

    High: 31 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Snow showers likely, mainly between 3pm and 5pm. Cloudy, with a high near 30. South wind 11 to 13 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
A chance of snow showers between 4am and 5am, then snow likely after 5am. Cloudy, with a low around 25. South wind 8 to 13 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Rain and snow, becoming all rain after noon. High near 39. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow, possibly mixed with rain, becoming all snow after 9pm. Low around 20. West wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow showers, mainly before 7am. High near 26. West wind 15 to 17 mph. Chance of precipitation is 80%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 20. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 31. West wind 8 to 10 mph.
Friday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 19. Southwest wind around 6 mph. Chance of precipitation is 40%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.
Saturday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 24. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 12.
Monday
Mostly cloudy, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Palmyra NY
 43.08°N 77.19°W (Elev. 499 ft)
Last Update:
12:36 pm EST Dec 9, 2025
Forecast Valid:
12pm EST Dec 9, 2025-6pm EST Dec 15, 2025
 
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