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

Hazardous Weather Conditions

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 58%
Wind Speed N 7 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Jun 9:54 am CDT
Extended Forecast for

6 Miles SW Elsberry MO

Flood Watch June 21, 01:00am until June 21, 07:00pm
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Increasing clouds, with a high near 82. Light northwest wind.

    High: 82 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 67. Light and variable wind becoming east 5 to 7 mph after midnight. Chance of precipitation is 30%.

    Low: 67 °F

    Partly Cloudy
    then
    Scattered
    Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly after 1pm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.

    High: 78 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 62. West wind 7 to 10 mph becoming north after midnight. Chance of precipitation is 70%.

    Low: 62 °F

    T-storms
    Likely

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 74. North wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 82. Light northwest wind.
Tonight
Scattered showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 67. Light and variable wind becoming east 5 to 7 mph after midnight. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms, mainly after 1pm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.
Sunday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 62. West wind 7 to 10 mph becoming north after midnight. Chance of precipitation is 70%.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 74. North wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Elsberry MO
 39.12°N 90.87°W (Elev. 899 ft)
Last Update:
9:41 am CDT Jun 20, 2026
Forecast Valid:
10am CDT Jun 20, 2026-6pm CDT Jun 26, 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