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

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Mostly Cloudy

53°F

12°C

Humidity 23%
Wind Speed SE 7 mph
Barometer 30.23 in (1024.0 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 24 Mar 5:54 pm CDT
Extended Forecast for

Byron IL

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 70 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 52. South wind 5 to 10 mph.

    Low: 52 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 75. South southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 30. North northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. Southeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday
Partly sunny, with a high near 70. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 52. South wind 5 to 10 mph.
Thursday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 75. South southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 30. North northeast wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 46.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 69.
Monday Night
A chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A chance of showers. Mostly cloudy, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.24°W
Last Update:
6:21 pm CDT Mar 24, 2026
Forecast Valid:
6pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
 
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Additional Resources

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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