Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Current conditions at

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Overcast

68°F

20°C

Humidity 81%
Wind Speed S 3 mph
Barometer 29.98 in (1014.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 6:54 am CDT
Extended Forecast for

Byron IL

Heat Advisory June 21, 10:00am until June 24, 12:00am
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm.  Mostly cloudy, then gradually becoming sunny, with a high near 86. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 95. Heat index values as high as 106. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 95 °F

    Hot and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 76. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Clear and
    Breezy then
    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 96. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 96 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers after 1pm.  Sunny and hot, with a high near 96.

    High: 96 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 92.

    High: 92 °F

    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny and hot, with a high near 95. Heat index values as high as 106. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Clear, with a low around 76. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 96. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 75.
Monday
A 20 percent chance of showers after 1pm. Sunny and hot, with a high near 96.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 90.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.24°W
4:41 am CDT Jun 20, 2025
7am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
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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