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

Hazardous Weather Conditions

Current conditions at

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Mostly Cloudy

45°F

7°C

Humidity 42%
Wind Speed S 12 mph
Barometer 30.32 in (1027.5 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 28 Mar 7:54 pm CDT
Extended Forecast for

Byron IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 64. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 47. South wind around 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 78. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 29.
Thursday
A chance of rain and snow showers before 1pm, then a chance of rain showers. Partly sunny, with a high near 44. Breezy.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 34.
Friday
Mostly cloudy, with a high near 59.
Friday Night
A chance of showers. Mostly cloudy, with a low around 43.
Saturday
A chance of showers. Mostly cloudy, 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:
6:56 pm CDT Mar 28, 2026
Forecast Valid:
8pm CDT Mar 28, 2026-6pm CDT Apr 4, 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