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

3°F

-16°C

Humidity 87%
Wind Speed Calm
Barometer 30.40 in (1030.9 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 31 Jan 11:54 pm CST
Extended Forecast for

Byron ILSimilar City Names

  • Overnight

    Overnight: Mostly clear, with a low around 6. Wind chill values as low as -1. Calm wind becoming south southwest around 5 mph.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of snow, mainly after 3pm. Increasing clouds, with a high near 27. Wind chill values as low as -2. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 27 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Cloudy, with a low around 18. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Snow Likely
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 28. West northwest wind 5 to 10 mph.

    High: 28 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 6. Wind chill values as low as -1. Calm wind becoming south southwest around 5 mph.
Sunday
A 40 percent chance of snow, mainly after 3pm. Increasing clouds, with a high near 27. Wind chill values as low as -2. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Snow likely, mainly before midnight. Cloudy, with a low around 18. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 28. West northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
Partly cloudy, with a low around 7.
Wednesday
Sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Partly sunny, with a high near 34.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 27.
Friday
Mostly cloudy, with a high near 35.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
Partly sunny, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron ILSimilar City Names
 42.13°N 89.24°W
Last Update:
11:41 pm CST Jan 31, 2026
Forecast Valid:
12am CST Feb 1, 2026-6pm CST Feb 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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