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.

A Few Clouds

60°F

16°C

Humidity 36%
Wind Speed NW 10 G 21 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 2 May 2:53 pm CDT
Extended Forecast for

Festus MO

Flood Warning May 2, 03:41pm until May 3, 08:30pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning May 2, 03:41pm until May 3, 08:30pm

    NOW until 8:30pm Sun

    Flood Warning

  • This Afternoon

    High: 61 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Patchy frost after 4am. Otherwise, mostly clear, with a low around 37. North wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 7am. Otherwise, sunny, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 76 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 54. Southwest wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 82. Southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 70. Chance of precipitation is 90%.

    High: 70 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Partly sunny, with a high near 61. North wind around 6 mph.
Tonight
Patchy frost after 4am. Otherwise, mostly clear, with a low around 37. North wind around 5 mph becoming calm in the evening.
Sunday
Patchy frost before 7am. Otherwise, sunny, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 54. Southwest wind 3 to 6 mph. Chance of precipitation is 60%.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 82. Southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 70. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 44. Chance of precipitation is 80%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 50%.
Wednesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 45.
Friday
Mostly sunny, with a high near 75.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 80.
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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:
2:11 pm CDT May 2, 2026
Forecast Valid:
3pm CDT May 2, 2026-6pm CDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation