Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

73°F

23°C

Humidity 50%
Wind Speed S 5 mph
Barometer 29.76 in (1007.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 21 Mar 8:53 pm CDT
Extended Forecast for

Festus MO

  • Tonight

    Tonight: Clear, with a low around 64. South wind 5 to 7 mph.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 91. South wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 91 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 58. Northeast wind around 6 mph.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. Light east wind.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Clear, with a low around 64. South wind 5 to 7 mph.
Sunday
Increasing clouds, with a high near 91. South wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph.
Monday
Mostly sunny, with a high near 58. Northeast wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 40. Light east wind.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 56.
Thursday
Sunny, with a high near 86.
Thursday Night
A 30 percent chance of rain and thunderstorms. Partly cloudy, with a low around 45.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 59.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
5:26 pm CDT Mar 21, 2026
9pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database