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

63°F

17°C

Humidity 41%
Wind Speed S 12 G 16 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 16 Feb 1:53 pm CST
Extended Forecast for

Festus MO

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 66. South wind around 8 mph.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 43. South wind around 6 mph becoming calm in the evening.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 66. Light southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 25 mph.

    High: 66 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy during the early evening, then gradual clearing, with a low around 55. South wind 10 to 14 mph, with gusts as high as 29 mph.

    Low: 55 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southwest wind 5 to 9 mph becoming light in the afternoon. Winds could gust as high as 23 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of rain. Mostly sunny, with a high near 75.

    High: 75 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny
    then

Detailed Forecast

Washington's Birthday
Mostly sunny, with a high near 66. South wind around 8 mph.
Tonight
Partly cloudy, with a low around 43. South wind around 6 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 66. Light southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Cloudy during the early evening, then gradual clearing, with a low around 55. South wind 10 to 14 mph, with gusts as high as 29 mph.
Wednesday
Sunny, with a high near 74. Southwest wind 5 to 9 mph becoming light in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
A 30 percent chance of rain. Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Partly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 27.
Sunday
Sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
2:06 pm CST Feb 16, 2026
Forecast Valid:
2pm CST Feb 16, 2026-6pm CST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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