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

Heavy to Excessive Rainfall for the Southwest;

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible. Read More >

Hazardous Weather Conditions

Current conditions at

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Fair

41°F

5°C

Humidity 96%
Wind Speed Calm
Barometer 30.47 in (1032.0 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 9 Oct 2:54 am CDT
Extended Forecast for

Byron IL

  • Overnight

    Overnight: Clear, with a low around 40. Calm wind.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Patchy frost before 8am. Otherwise, sunny, with a high near 66. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 66 °F

    Patchy Frost
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 69. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. West southwest wind 5 to 10 mph becoming north northwest in the evening.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 40. Calm wind.
Thursday
Patchy frost before 8am. Otherwise, sunny, with a high near 66. Light east wind becoming southeast 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 45. Southeast wind around 5 mph, with gusts as high as 10 mph.
Friday
Partly sunny, with a high near 69. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 40. West southwest wind 5 to 10 mph becoming north northwest in the evening.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 54.
Columbus Day
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.24°W
Last Update:
2:11 am CDT Oct 9, 2025
Forecast Valid:
3am CDT Oct 9, 2025-6pm CDT Oct 15, 2025
 
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