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

89°F

32°C

Humidity 63%
Wind Speed SW 6 mph
Barometer 30.07 in (1017.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 16 Aug 10:54 am CDT
Extended Forecast for

7 Miles W Foley MO

Heat Advisory August 16, 11:55am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 11:55am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Today

    High: 95 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. South wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Heat index values as high as 106. Light and variable wind.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Light southeast wind.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Today
Isolated showers and thunderstorms after 4pm. Sunny, with a high near 95. Heat index values as high as 103. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. South wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 106. Light and variable wind.
Sunday Night
Mostly clear, with a low around 76. Light southeast wind.
Monday
Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles W Foley MO
 39.06°N 90.87°W (Elev. 682 ft)
Last Update:
10:36 am CDT Aug 16, 2025
Forecast Valid:
11am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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