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.

Fair

59°F

15°C

Humidity 81%
Wind Speed NW 3 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 23 Aug 2:54 am CDT
Extended Forecast for

Byron IL

  • Overnight

    Overnight: Clear, with a low around 56. North northwest wind around 5 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 76. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 56. North northwest wind around 5 mph.
Sunday
Sunny, with a high near 76. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Monday
Mostly sunny, with a high near 78. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 54. Calm wind.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61.
Wednesday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 57.
Saturday
Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.24°W
Last Update:
3:41 am CDT Aug 23, 2026
Forecast Valid:
3am CDT Aug 23, 2026-6pm CDT Aug 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