Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Mostly Cloudy

3°F

-16°C

Humidity 72%
Wind Speed N 9 mph
Barometer 30.32 in (1028.4 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 25 Jan 1:52 am CST
Extended Forecast for

Port Byron IL

Cold Weather Advisory January 26, 12:00am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  • Overnight

    Overnight: A 20 percent chance of snow before 3am.  Mostly cloudy, with a low around 2. Wind chill values as low as -10. North wind around 5 mph.

    Low: 2 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing and cold, with a high near 10. Wind chill values as low as -10. North wind around 10 mph, with gusts as high as 20 mph.

    High: 10 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -3. Wind chill values as low as -20. Northwest wind around 10 mph.

    Low: -3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 12. Wind chill values as low as -20. Northwest wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 12 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 2.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 17.

    High: 17 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow before 3am. Mostly cloudy, with a low around 2. Wind chill values as low as -10. North wind around 5 mph.
Sunday
Cloudy through mid morning, then gradual clearing and cold, with a high near 10. Wind chill values as low as -10. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around -3. Wind chill values as low as -20. Northwest wind around 10 mph.
Monday
Sunny, with a high near 12. Wind chill values as low as -20. Northwest wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Mostly sunny, with a high near 17.
Tuesday Night
Mostly clear, with a low around 2.
Wednesday
Partly sunny, with a high near 17.
Wednesday Night
Partly cloudy, with a low around 0.
Thursday
Mostly sunny, with a high near 16.
Thursday Night
Mostly cloudy, with a low around 3.
Friday
Mostly sunny, with a high near 19.
Friday Night
Partly cloudy, with a low around 3.
Saturday
Sunny, with a high near 22.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Byron IL
 41.62°N 90.33°W (Elev. 627 ft)
1:51 am CST Jan 25, 2026
2am CST Jan 25, 2026-6pm CST Jan 31, 2026
 
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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