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.

Mostly Cloudy

61°F

16°C

Humidity 93%
Wind Speed S 7 mph
Barometer 29.68 in (1004.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Apr 2:52 am CDT
Extended Forecast for

Port Byron IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 61. Southwest wind around 10 mph.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 75. West wind around 10 mph.

    High: 75 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56. Southeast wind 5 to 10 mph.

    Low: 56 °F

    Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Increasing clouds, with a high near 81. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Mostly Sunny
    then T-storms
    Likely and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 40. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 40 °F

    T-storms then
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 61. Southwest wind around 10 mph.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 75. West wind around 10 mph.
Thursday Night
Clear, with a low around 56. Southeast wind 5 to 10 mph.
Friday
Showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Increasing clouds, with a high near 81. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 40. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 72.
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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:
1:26 am CDT Apr 16, 2026
Forecast Valid:
3am CDT Apr 16, 2026-6pm CDT Apr 22, 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