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

Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

71°F

22°C

Humidity 66%
Wind Speed E 7 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 7 Sep 12:54 am CDT
Extended Forecast for

Carrollton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. East wind 5 to 7 mph.

    Low: 62 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 86. East wind 5 to 8 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. East wind 5 to 7 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. South wind 5 to 8 mph.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. Southeast wind 3 to 8 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Chance of precipitation is 30%.

    High: 94 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. East wind 5 to 7 mph.
Labor Day
Sunny, with a high near 86. East wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 60. East wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 92. South wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 69. Southeast wind 3 to 8 mph.
Wednesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Thursday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 85.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 64.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carrollton IL
 39.29°N 90.4°W (Elev. 568 ft)
Last Update:
1:26 am CDT Sep 7, 2026
Forecast Valid:
1am CDT Sep 7, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation