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.

A Few Clouds

21°F

-6°C

Humidity 74%
Wind Speed N 7 mph
Barometer 30.48 in (1033.4 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 1 Mar 7:54 am CST
Extended Forecast for

Byron IL

  • Today

    Today: Increasing clouds, with a high near 35. East northeast wind 5 to 10 mph.

    High: 35 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. East wind around 5 mph, with gusts as high as 15 mph.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 45. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 45 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 33. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Cloudy, with a high near 45. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

    High: 45 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

    Low: 35 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 52. Chance of precipitation is 50%.

    High: 52 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Cloudy, with a high near 55.

    High: 55 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 35. East northeast wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 21. East wind around 5 mph, with gusts as high as 15 mph.
Monday
Increasing clouds, with a high near 45. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 33. Southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 45. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 52. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Thursday
A chance of showers. Cloudy, with a high near 55.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 43.
Friday
Showers likely. Mostly cloudy, with a high near 64.
Friday Night
Showers likely. Mostly cloudy, with a low around 42.
Saturday
A chance of showers. Mostly cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.27°W
Last Update:
6:46 am CST Mar 1, 2026
Forecast Valid:
8am CST Mar 1, 2026-6pm CST Mar 7, 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