Severe Weather and Flooding Threats for the Central U.S.; Dangerous Heat in the Southern and Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. over the next couple of days, with multiple rounds of thunderstorms expected. Dangerous heat will persist across the southern and western U.S. through mid-week. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, where dry thunderstorms may spark additional wildfires. Read More >

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

76°F

24°C

Humidity 52%
Wind Speed E 3 mph
Barometer 30.14 in (1020.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 23 Jun 6:56 pm CDT
Extended Forecast for

Harmon ILSimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 80. Southwest wind 5 to 15 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm.  Partly cloudy, with a low around 59. West southwest wind 5 to 10 mph becoming light  in the evening.

    Low: 59 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 80. Light west wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers.  Mostly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 1am.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.
Wednesday
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 80. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 59. West southwest wind 5 to 10 mph becoming light in the evening.
Thursday
Partly sunny, with a high near 80. Light west wind increasing to 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 59. Calm wind becoming east northeast around 5 mph after midnight.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers after 1am. Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 74.
Monday
Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Harmon ILSimilar City Names
 41.73°N 89.56°W
2:46 pm CDT Jun 23, 2026
7pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
 
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Additional Resources

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Hourly Weather Forecast

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