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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

59°F

15°C

Humidity 33%
Wind Speed W 18 G 33 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 13 Mar 11:53 am CDT
Extended Forecast for

Festus MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 63. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 9 mph in the morning.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 53. South wind 6 to 10 mph, with gusts as high as 24 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 69. South wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.

    High: 69 °F

    Chance Rain
    then Showers

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Rain/Snow

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 31.

    High: 31 °F

    Slight Chance
    Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 63. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 35. Light and variable wind.
Saturday
Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Saturday Night
Increasing clouds, with a low around 53. South wind 6 to 10 mph, with gusts as high as 24 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 69. South wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
11:41 am CDT Mar 13, 2026
Forecast Valid:
12pm CDT Mar 13, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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