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

88°F

31°C

Humidity 57%
Wind Speed SE 7 mph
Barometer 30.00 in (1015.4 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 20 Jun 1:54 pm CDT
Extended Forecast for

2 Miles NW Elsberry MO

Heat Advisory June 21, 12:00pm until June 24, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. South wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 76. South wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 106. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 91. South wind 11 to 13 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 76. South wind 8 to 11 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 95. Heat index values as high as 106. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.
Saturday Night
Clear, with a low around 74. South wind 6 to 13 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 94. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Sunday Night
Clear, with a low around 75.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Elsberry MO
 39.19°N 90.83°W (Elev. 528 ft)
Last Update:
11:37 am CDT Jun 20, 2025
Forecast Valid:
2pm CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation