Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Fair

65°F

18°C

Humidity 81%
Wind Speed NW 3 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 27 Aug 12:54 am CDT
Extended Forecast for

Byron IL

  • Overnight

    Overnight: Mostly clear, with a low around 61. Northwest wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming north northwest around 5 mph in the morning. Winds could gust as high as 15 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 57. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 82. Calm wind becoming west around 5 mph.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Calm wind becoming south around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 61. Northwest wind around 5 mph.
Thursday
Sunny, with a high near 81. Calm wind becoming north northwest around 5 mph in the morning. Winds could gust as high as 15 mph.
Thursday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Calm wind becoming west around 5 mph.
Friday Night
Partly cloudy, with a low around 60. Calm wind becoming south around 5 mph.
Saturday
Partly sunny, with a high near 80.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Monday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.
Monday Night
A chance of showers. Partly cloudy, with a low around 70.
Tuesday
A chance of showers. Mostly sunny, with a high near 87.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.27°W
1:21 am CDT Aug 27, 2026
1am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database