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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Light Snow and Breezy

17°F

-8°C

Humidity 74%
Wind Speed W 23 G 32 mph
Barometer 30.24 in (1025.1 mb)
Dewpoint 10°F (-12°C)
Visibility NA
Wind Chill-1°F (-18°C)
Last update 29 Dec 2:52 pm CST
Extended Forecast for

Port Byron IL

  • This Afternoon

    This Afternoon: A 20 percent chance of snow. Partly sunny, with a high near 19. Wind chill values as low as zero. Blustery, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 19 °F

    Slight Chance
    Snow and
    Blustery

  • Tonight

    Tonight: Scattered flurries before 11pm. Mostly clear, with a low around 10. Wind chill values as low as -5. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Scattered
    Flurries

  • Tuesday

    Tuesday: Increasing clouds, with a high near 30. Wind chill values as low as zero. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. West wind around 10 mph.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Sunny, with a high near 23.

    High: 23 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of snow. Partly sunny, with a high near 19. Wind chill values as low as zero. Blustery, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Scattered flurries before 11pm. Mostly clear, with a low around 10. Wind chill values as low as -5. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Increasing clouds, with a high near 30. Wind chill values as low as zero. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 26. West wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 33.
Wednesday Night
Partly cloudy, with a low around 12.
New Year's Day
Sunny, with a high near 23.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Byron IL
 41.62°N 90.33°W (Elev. 627 ft)
Last Update:
2:06 pm CST Dec 29, 2025
Forecast Valid:
3pm CST Dec 29, 2025-6pm CST Jan 4, 2026
 
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