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

Hazardous Weather Conditions

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Overcast

59°F

15°C

Humidity 90%
Wind Speed NW 16 G 29 mph
Barometer 29.86 in (1010.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Oct 7:52 pm CDT
Extended Forecast for

Port Byron IL

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Breezy.
    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 33. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 33 °F

    Partly Cloudy
    then Areas
    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 57 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
A 40 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Friday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 33. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 74.
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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:
2:01 pm CDT Oct 15, 2026
Forecast Valid:
8pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation