Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

41°F

5°C

Humidity 96%
Wind Speed E 6 mph
Barometer 30.45 in (1031.2 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 18 Oct 12:54 am CDT
Extended Forecast for

7 Miles ENE Cave MO

Frost Advisory October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Frost Advisory
  • Overnight

    Overnight: Clear, with a low around 37. Light south wind.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Patchy frost before 8am.  Otherwise, sunny, with a high near 69. South wind 3 to 6 mph.

    High: 69 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 41. Light south wind.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71. Light south wind.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 37. Light south wind.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 69. South wind 3 to 6 mph.
Sunday Night
Clear, with a low around 41. Light south wind.
Monday
Sunny, with a high near 71. Light south wind.
Monday Night
Mostly clear, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Cave MO
 39.08°N 90.92°W (Elev. 699 ft)
12:21 am CDT Oct 18, 2026
12am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database