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

Niagara Falls, Niagara Falls International Airport (KIAG)

Lat: 43.11°NLon: 78.94°WElev: 587ft.

Fair

12°F

-11°C

Humidity 73%
Wind Speed Calm
Barometer 30.27 in (1027.2 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Last update 8 Dec 10:53 pm EST
Extended Forecast for

Olcott NY

  • Tonight

    Tonight: Partly cloudy, with a low around 12. South wind around 7 mph.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Snow showers, mainly after 1pm. High near 36. South wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers

  • Tuesday Night

    Tuesday Night: Snow showers likely, possibly mixed with rain before 10pm, then snow. Low around 28. Breezy, with a southwest wind 13 to 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Rain/Snow and
    Breezy then
    Snow

  • Wednesday

    Wednesday: Rain and snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. High near 40. Breezy, with a south wind 14 to 19 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 10pm. Mostly cloudy, with a low around 22. Blustery, with a northwest wind 18 to 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 22 °F

    Blustery.
    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 30. Breezy, with a west wind 16 to 20 mph. Chance of precipitation is 60%.

    High: 30 °F

    Snow Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 20. West wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 20 °F

    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow showers. Mostly cloudy, with a high near 32. West wind 10 to 14 mph. Chance of precipitation is 40%.

    High: 32 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Snow showers likely. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.

    Low: 20 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 12. South wind around 7 mph.
Tuesday
Snow showers, mainly after 1pm. High near 36. South wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow showers likely, possibly mixed with rain before 10pm, then snow. Low around 28. Breezy, with a southwest wind 13 to 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Rain and snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. High near 40. Breezy, with a south wind 14 to 19 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 41 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. Blustery, with a northwest wind 18 to 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 30. Breezy, with a west wind 16 to 20 mph. Chance of precipitation is 60%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 20. West wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 32. West wind 10 to 14 mph. Chance of precipitation is 40%.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.
Saturday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 50%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Olcott NY
 43.33°N 78.71°W (Elev. 299 ft)
Last Update:
9:35 pm EST Dec 8, 2025
Forecast Valid:
11pm EST Dec 8, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation