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

52°F

11°C

Humidity 64%
Wind Speed N 13 G 29 mph
Barometer 29.72 in (1006.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 22 Mar 6:54 am CDT
Extended Forecast for

Byron IL

  • Today

    Today: A slight chance of rain between 1pm and 3pm. Mostly cloudy, with a temperature falling to around 41 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 50 °F⇓

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 27. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 47. North wind around 5 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Calm wind becoming south southeast around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 60.

    High: 60 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of rain between 1pm and 3pm. Mostly cloudy, with a temperature falling to around 41 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 27. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 47. North wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 30. Calm wind becoming south southeast around 5 mph after midnight. Winds could gust as high as 10 mph.
Tuesday
Partly sunny, with a high near 57. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 52.
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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 CDT Mar 22, 2026
Forecast Valid:
7am CDT Mar 22, 2026-6pm CDT Mar 28, 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