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

Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Overcast

40°F

4°C

Humidity 93%
Wind Speed NE 10 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Nov 1:52 am CST
Extended Forecast for

Port Byron IL

  • Overnight

    Overnight: Cloudy, with a low around 40. Northeast wind 5 to 10 mph.

    Low: 40 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 46. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 46 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Calm wind becoming south around 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 60. South wind around 5 mph becoming west in the afternoon.

    High: 60 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

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

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 40. Northeast wind 5 to 10 mph.
Wednesday
Cloudy, with a high near 46. Northeast wind around 5 mph becoming calm in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 41. Calm wind becoming south around 5 mph.
Thursday
Mostly cloudy, with a high near 60. South wind around 5 mph becoming west in the afternoon.
Thursday Night
Mostly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 53.
Friday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 32.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 57.
Monday Night
A 30 percent chance of rain. Partly cloudy, with a low around 36.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 52.
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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:
1:36 am CST Nov 19, 2025
Forecast Valid:
2am CST Nov 19, 2025-6pm CST Nov 25, 2025
 
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