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

51°F

11°C

Humidity 69%
Wind Speed W 8 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 30 Apr 6:52 pm CDT
Extended Forecast for

Port Byron IL

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 36. Northwest wind 5 to 10 mph.

    Low: 36 °F

    Partly Cloudy
    then Areas
    Frost

  • Friday

    Friday: A 30 percent chance of showers, mainly after 3pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 56. Northwest wind around 5 mph.

    High: 56 °F

    Areas Frost
    then Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 10pm. Patchy frost after 2am. Otherwise, partly cloudy, with a low around 36. North wind around 5 mph.

    Low: 36 °F

    Slight Chance
    Showers then
    Patchy Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58. North wind 5 to 10 mph.

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of frost after 5am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 36. Northwest wind 5 to 10 mph.
Friday
A 30 percent chance of showers, mainly after 3pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 56. Northwest wind around 5 mph.
Friday Night
A 20 percent chance of showers before 10pm. Patchy frost after 2am. Otherwise, partly cloudy, with a low around 36. North wind around 5 mph.
Saturday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58. North wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 69.
Sunday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 76.
Monday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 48.
Tuesday
A 50 percent chance of showers after 1pm. Partly sunny, with a high near 64.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 61.
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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:
6:06 pm CDT Apr 30, 2026
Forecast Valid:
7pm CDT Apr 30, 2026-6pm CDT May 7, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation