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.

Fair

37°F

3°C

Humidity 70%
Wind Speed NE 6 mph
Barometer 30.33 in (1027.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 24 Mar 6:53 am CDT
Extended Forecast for

Festus MO

  • Today

    Today: Mostly sunny, with a high near 64. Southeast wind 5 to 7 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southeast wind 3 to 6 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South wind 6 to 8 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of rain before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.

    High: 54 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. Southeast wind 5 to 7 mph.
Tonight
Mostly cloudy, with a low around 43. Southeast wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 78. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 62. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 90. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Thursday Night
A chance of rain before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Friday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
2:56 am CDT Mar 24, 2026
Forecast Valid:
7am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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