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 >

Current conditions at

Rochester, Greater Rochester International Airport (KROC)

Lat: 43.12°NLon: 77.68°WElev: 558ft.

Partly Cloudy

12°F

-11°C

Humidity 56%
Wind Speed SW 8 mph
Barometer 30.30 in (1027.5 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 8 Dec 9:54 pm EST
Extended Forecast for

Lima NY

  • Tonight

    Tonight: Partly cloudy, with a low around 7. South wind around 6 mph.

    Low: 7 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow showers between 1pm and 5pm. Increasing clouds, with a high near 32. Wind chill values as low as -5. South wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 32 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers between 7pm and 4am, then snow likely after 4am. Mostly cloudy, with a low around 26. Southwest wind 13 to 16 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Slight Chance
    Snow Showers
    then Snow
    Likely

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 38. South wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 10pm. Mostly cloudy, with a low around 22. West wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 22 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: A chance of snow showers. Mostly cloudy, with a high near 28. West wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

    High: 28 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 18. West wind 10 to 13 mph. Chance of precipitation is 50%.

    Low: 18 °F

    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow showers. Partly sunny, with a high near 30. West wind around 10 mph. Chance of precipitation is 40%.

    High: 30 °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 70%.

    Low: 19 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 7. South wind around 6 mph.
Tuesday
A chance of snow showers between 1pm and 5pm. Increasing clouds, with a high near 32. Wind chill values as low as -5. South wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
A chance of snow showers between 7pm and 4am, then snow likely after 4am. Mostly cloudy, with a low around 26. Southwest wind 13 to 16 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 38. South wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely, becoming all snow after 10pm. Mostly cloudy, with a low around 22. West wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 28. West wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 18. West wind 10 to 13 mph. Chance of precipitation is 50%.
Friday
A chance of snow showers. Partly sunny, with a high near 30. West wind around 10 mph. Chance of precipitation is 40%.
Friday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.
Saturday
Snow showers likely. Mostly cloudy, with a high near 26. Chance of precipitation is 60%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Chance of precipitation is 50%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
A chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lima NY
 42.91°N 77.64°W (Elev. 909 ft)
Last Update:
9:35 pm EST Dec 8, 2025
Forecast Valid:
10pm EST Dec 8, 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