Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. 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 84%
Wind Speed Calm
Barometer 30.02 in (1016.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 9 Sep 2:54 am CDT
Extended Forecast for

Elsberry MO

  • Overnight

    Overnight: Mostly clear, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Increasing clouds, with a high near 92. Heat index values as high as 101. South wind around 6 mph becoming north in the afternoon.

    High: 92 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am.  Low around 69. Calm wind.  Chance of precipitation is 80%.

    Low: 69 °F

    T-storms

  • Thursday

    Thursday: Showers and thunderstorms before 4pm, then a slight chance of showers.  High near 80. Light and variable wind.  Chance of precipitation is 90%.

    High: 80 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers.  Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 73. South wind around 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 92. Heat index values as high as 101. South wind around 6 mph becoming north in the afternoon.
Wednesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 69. Calm wind. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms before 4pm, then a slight chance of showers. High near 80. Light and variable wind. Chance of precipitation is 90%.
Thursday Night
Partly cloudy, with a low around 61. Calm wind.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 66.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 92.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 68.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Elsberry MO
 39.17°N 90.78°W (Elev. 436 ft)
2:46 am CDT Sep 9, 2026
3am CDT Sep 9, 2026-6pm CDT Sep 15, 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