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

70°F

21°C

Humidity 68%
Wind Speed S 14 mph
Barometer 29.81 in (1009.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 9 Mar 12:53 pm CDT
Extended Forecast for

Festus MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. South wind around 11 mph, with gusts as high as 24 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind around 7 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. South wind 5 to 13 mph, with gusts as high as 24 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 55. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature rising to near 65 by 10am, then falling to around 51 during the remainder of the day. Southwest wind 9 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%.

    High: 65 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. South wind around 11 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 60. South wind around 7 mph.
Tuesday
Mostly sunny, with a high near 82. South wind 5 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 55. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature rising to near 65 by 10am, then falling to around 51 during the remainder of the day. Southwest wind 9 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 71.
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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:
11:31 am CDT Mar 9, 2026
Forecast Valid:
1pm CDT Mar 9, 2026-6pm CDT Mar 15, 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