Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

89°F

32°C

Humidity 57%
Wind Speed S 6 mph
Barometer 30.23 in (1023.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Sep 12:54 pm CDT
Extended Forecast for

Elsberry MO

Heat Advisory September 16, 01:44pm until September 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 16, 01:44pm until September 18, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Heat index values as high as 106. Light and variable wind.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 71. Calm wind.

    Low: 71 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 93. Light and variable wind.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. Heat index values as high as 103. Light and variable wind.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Calm wind.
Thursday
Sunny, with a high near 95. Heat index values as high as 106. Light and variable wind.
Thursday Night
Increasing clouds, with a low around 71. Calm wind.
Friday
Mostly sunny, with a high near 93. Light and variable wind.
Friday Night
Mostly clear, with a low around 72.
Saturday
Mostly sunny, with a high near 95.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Monday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Elsberry MO
 39.17°N 90.78°W (Elev. 436 ft)
1:31 pm CDT Sep 16, 2026
1pm CDT Sep 16, 2026-6pm CDT Sep 22, 2026
 
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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