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.

Overcast

36°F

2°C

Humidity 34%
Wind Speed N 9 mph
Barometer 30.45 in (1032.2 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 1 Mar 2:54 pm CST
Extended Forecast for

Byron IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 36. East wind around 5 mph.

    High: 36 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 22. East wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 22 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 46. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Scattered showers, mainly after 3am. Mostly cloudy, with a low around 32. Southeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Tuesday

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

    High: 45 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 35.

    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: Showers likely, mainly after midnight. Cloudy, with a low around 40.

    Low: 40 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 36. East wind around 5 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 22. East wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 46. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Scattered showers, mainly after 3am. Mostly cloudy, with a low around 32. Southeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 45. East southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 35.
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
Showers likely, mainly after midnight. Cloudy, with a low around 40.
Thursday
A chance of showers. Mostly cloudy, with a high near 57.
Thursday Night
A chance of showers after midnight. Mostly cloudy, with a low around 43.
Friday
Showers. Mostly cloudy, with a high near 68.
Friday Night
Showers likely. Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 56.
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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:
2:41 pm CST Mar 1, 2026
Forecast Valid:
3pm 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