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.

Partly Cloudy

93°F

34°C

Humidity 50%
Wind Speed S 8 mph
Barometer 30.12 in (1019.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 23 Jun 1:54 pm CDT
Extended Forecast for

3 Miles NNW Elsberry MO

Heat Advisory June 23, 02:03pm until June 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 23, 02:03pm until June 26, 09:00pm

    NOW until 9:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 73. South wind 3 to 7 mph.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 92. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.

    Low: 73 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 94. Heat index values as high as 101. Southwest wind around 9 mph.
Tonight
Partly cloudy, with a low around 73. South wind 3 to 7 mph.
Tuesday
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 73. Calm wind.
Wednesday
A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 92. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Sunny, with a high near 93.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Elsberry MO
 39.21°N 90.8°W (Elev. 509 ft)
Last Update:
1:06 pm CDT Jun 23, 2025
Forecast Valid:
2pm CDT Jun 23, 2025-6pm CDT Jun 29, 2025
 
Forecast Discussion
 
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Additional Resources

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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