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

49°F

9°C

Humidity 46%
Wind Speed S 13 G 22 mph
Barometer 29.98 in (1015.5 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 12 Mar 8:53 pm CDT
Extended Forecast for

Festus MO

  • Tonight

    Tonight: Mostly cloudy early, then becoming mostly clear, with a low around 43. Light south wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 26 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 63. West wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54. South wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain and snow likely before 1am, then a chance of snow. Some thunder is also possible. Mostly cloudy, with a low around 20. Breezy. Chance of precipitation is 70%.

    Low: 20 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy early, then becoming mostly clear, with a low around 43. Light south wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 26 mph.
Friday
Mostly sunny, with a high near 63. West wind 7 to 10 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 35. Calm wind.
Saturday
Partly sunny, with a high near 68. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 54. South wind 6 to 9 mph, with gusts as high as 21 mph.
Sunday
A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 90%.
Sunday Night
Rain and snow likely before 1am, then a chance of snow. Some thunder is also possible. Mostly cloudy, with a low around 20. Breezy. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
9:26 pm CDT Mar 12, 2026
Forecast Valid:
9pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation