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

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

29°C

85°F

Humidity 53%
Wind Speed W 9 km/h
Barometer 1017.0 mb (30.05 in)
Dewpoint 19°C (66°F)
Visibility 16 km
Heat Index31°C (87°F)
Last update 3 Jul 10:54 am CDT
Extended Forecast for

5 Miles ENE Cave MO

  • Today

    Today: Mostly sunny, with a high near 32. Calm wind.

    High: 32 °C

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 21. Calm wind.

    Low: 21 °C

    Mostly Clear

  • Independence Day

    Independence Day: Sunny, with a high near 33. Calm wind becoming south 5 to 10 km/h in the morning.

    High: 33 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22. South wind 5 to 8 km/h.

    Low: 22 °C

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 33. South wind 5 to 11 km/h.

    High: 33 °C

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23.

    Low: 23 °C

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.

    High: 31 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 21.

    Low: 21 °C

    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 29.

    High: 29 °C

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 32. Calm wind.
Tonight
Mostly clear, with a low around 21. Calm wind.
Independence Day
Sunny, with a high near 33. Calm wind becoming south 5 to 10 km/h in the morning.
Friday Night
Mostly clear, with a low around 22. South wind 5 to 8 km/h.
Saturday
Mostly sunny, with a high near 33. South wind 5 to 11 km/h.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 21.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 20.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Cave MO
 39.06°N 90.95°W (Elev. 617 m)
Last Update:
7:51 am CDT Jul 3, 2025
Forecast Valid:
11am CDT Jul 3, 2025-6pm CDT Jul 9, 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