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

41°F

5°C

Humidity 32%
Wind Speed N 8 G 22 mph
Barometer 30.46 in (1032.2 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 23 Mar 12:54 pm CDT
Extended Forecast for

Byron IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 46. North wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 29. East northeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. South southeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 46. North wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Increasing clouds, with a low around 29. East northeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Tuesday
Partly sunny, with a high near 52. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 38. South southeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 66. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 74.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.27°W
Last Update:
12:36 pm CDT Mar 23, 2026
Forecast Valid:
1pm CDT Mar 23, 2026-6pm CDT Mar 29, 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