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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Rain

42°F

6°C

Humidity 92%
Wind Speed N 17 mph
Barometer 30.19 in (1022.0 mb)
Dewpoint 40°F (4°C)
Visibility 7.00 mi
Wind Chill34°F (1°C)
Last update 27 Mar 4:53 am CDT
Extended Forecast for

Festus MO

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 46. North wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 53 °F

    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. North wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. South wind 3 to 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 46. North wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Friday Night
Mostly clear, with a low around 30. North wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 57. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 39. South wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 77.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
5:41 am CDT Mar 27, 2026
Forecast Valid:
5am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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