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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Overcast

23°F

-5°C

Humidity 81%
Wind Speed NW 6 mph
Barometer 29.90 in (1013.3 mb)
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill16°F (-9°C)
Last update 2 Jan 1:52 am CST
Extended Forecast for

Port Byron IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 23. Northwest wind around 5 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 25. North wind around 5 mph.

    High: 25 °F

    Partly Sunny

  • Friday Night

    Friday Night: Cloudy, with a low around 20. North wind around 5 mph.

    Low: 20 °F

    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 30. Calm wind becoming west around 5 mph.

    High: 30 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 23. Northwest wind around 5 mph.
Friday
Partly sunny, with a high near 25. North wind around 5 mph.
Friday Night
Cloudy, with a low around 20. North wind around 5 mph.
Saturday
Partly sunny, with a high near 30. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 17.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 50.
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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:
2:36 am CST Jan 2, 2026
Forecast Valid:
2am CST Jan 2, 2026-6pm CST Jan 8, 2026
 
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