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.

Overcast

28°F

-2°C

Humidity 78%
Wind Speed N 14 mph
Barometer 30.30 in (1026.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 7 Dec 10:53 pm CST
Extended Forecast for

Festus MO

  • Tonight

    Tonight: Cloudy, with a low around 23. North wind 6 to 8 mph.

    Low: 23 °F

    Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 38. North wind around 5 mph becoming calm in the morning.

    High: 38 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. Light and variable wind becoming south 5 to 8 mph in the evening.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Southwest wind around 10 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 39. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 23. North wind 6 to 8 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 38. North wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 26. Light and variable wind becoming south 5 to 8 mph in the evening.
Tuesday
Mostly sunny, with a high near 55. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Southwest wind around 10 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 28.
Thursday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 39. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 30.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Partly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 28.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
10:11 pm CST Dec 7, 2025
Forecast Valid:
11pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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