Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

77°F

25°C

Humidity 85%
Wind Speed Calm
Barometer 29.94 in (1013.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 Aug 7:54 pm CDT
Extended Forecast for

2 Miles SW Eldred IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 4am.  Increasing clouds, with a low around 67. Light and variable wind.  Chance of precipitation is 70%.

    Low: 67 °F

    Partly Cloudy
    then T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 9am.  Mostly cloudy, with a high near 79. Light and variable wind becoming southeast around 6 mph in the morning.  Chance of precipitation is 70%.

    High: 79 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 9pm.  Mostly cloudy, with a low around 64. North wind around 6 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83. North wind around 5 mph becoming calm  in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 1pm.  Sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly after 4am. Increasing clouds, with a low around 67. Light and variable wind. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms likely, mainly before 9am. Mostly cloudy, with a high near 79. Light and variable wind becoming southeast around 6 mph in the morning. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 64. North wind around 6 mph.
Thursday
Mostly sunny, with a high near 83. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 62. Calm wind.
Friday
Sunny, with a high near 86.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 65.
Saturday
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 85. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Eldred IL
 39.25°N 90.57°W (Elev. 430 ft)
5:06 pm CDT Aug 18, 2026
8pm CDT Aug 18, 2026-6pm CDT Aug 25, 2026
 
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