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.

Light Rain

46°F

8°C

Humidity 73%
Wind Speed W 14 mph
Barometer 30.17 in (1022.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 5 Apr 10:54 pm CDT
Extended Forecast for

Byron IL

  • Tonight

    Tonight: Showers, mainly before midnight. Low around 34. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44. Northeast wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 10 mph.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before 1am, then a slight chance of rain showers. Mostly cloudy, with a low around 34. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. Breezy.

    High: 65 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers, mainly before midnight. Low around 34. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 24. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 44. Northeast wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 10 mph.
Tuesday Night
A slight chance of snow showers before 1am, then a slight chance of rain showers. Mostly cloudy, with a low around 34. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 65. Breezy.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 66.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 42.
Friday
A chance of showers. Partly sunny, with a high near 61.
Friday Night
A chance of showers. Mostly cloudy, with a low around 41.
Saturday
A chance of showers. Partly sunny, with a high near 64.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
Showers likely. Mostly cloudy, with a high near 73.
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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:
9:41 pm CDT Apr 5, 2026
Forecast Valid:
11pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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