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.

Fair

30°F

-1°C

Humidity 69%
Wind Speed NE 5 mph
Barometer 29.64 in (1003.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 19 Feb 3:52 am CST
Extended Forecast for

Port Byron IL

  • Today

    Today: A chance of rain before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 55. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 55 °F

    Mostly Cloudy
    then Showers
    Likely

  • Tonight

    Tonight: Rain before 2am, then rain and snow between 2am and 3am, then snow likely after 3am. Some thunder is also possible. Low around 30. Breezy, with a south wind 10 to 20 mph becoming north in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain Likely
    then
    Rain/Snow and
    Breezy

  • Friday

    Friday: A 20 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 38. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 38 °F

    Breezy.
    Slight Chance
    Snow then
    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Today
A chance of rain before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 55. East wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tonight
Rain before 2am, then rain and snow between 2am and 3am, then snow likely after 3am. Some thunder is also possible. Low around 30. Breezy, with a south wind 10 to 20 mph becoming north in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 38. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Friday Night
Partly cloudy, with a low around 22. Northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 35.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Byron IL
 41.62°N 90.33°W (Elev. 627 ft)
Last Update:
3:16 am CST Feb 19, 2026
Forecast Valid:
4am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation