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.

A Few Clouds

36°F

2°C

Humidity 42%
Wind Speed Vrbl 5 mph
Barometer 30.53 in (1034.6 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 7 Apr 11:54 am CDT
Extended Forecast for

Byron IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. East southeast wind 5 to 10 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: A slight chance of snow showers before 2am, then a slight chance of snow showers and sleet between 2am and 3am, then a slight chance of rain showers after 3am. Mostly cloudy, with a low around 34. East southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance Wintry
    Mix

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 68. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 68 °F

    Decreasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 10pm. Mostly cloudy, with a low around 48. Breezy, with a south southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 64. West wind 5 to 10 mph.

    High: 64 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Showers

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 59.

    High: 59 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 44. East southeast wind 5 to 10 mph.
Tonight
A slight chance of snow showers before 2am, then a slight chance of snow showers and sleet between 2am and 3am, then a slight chance of rain showers after 3am. Mostly cloudy, with a low around 34. East southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 68. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph.
Wednesday Night
Showers likely, mainly after 10pm. Mostly cloudy, with a low around 48. Breezy, with a south southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 64. West wind 5 to 10 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 80%.
Friday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 59.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
A chance of showers. Mostly cloudy, with a high near 74.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 60.
Monday
A chance of showers. Partly sunny, with a high near 77. Breezy.
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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:
11:16 am CDT Apr 7, 2026
Forecast Valid:
12pm CDT Apr 7, 2026-6pm CDT Apr 13, 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