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.

Overcast

54°F

12°C

Humidity 69%
Wind Speed NW 13 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 1 May 1:53 am CDT
Extended Forecast for

Festus MO

Flood Warning May 1, 03:54am until May 3, 04:00pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning May 1, 03:54am until May 3, 04:00pm

    NOW until 4:00pm Sun

    Flood Warning

  • Overnight

    Low: 43 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 64. Calm wind becoming north around 6 mph in the morning.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers between 1am and 4am. Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 61. Calm wind becoming north around 6 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers after 1am. Partly cloudy, with a low around 55. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 43. Light northwest wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 64. Calm wind becoming north around 6 mph in the morning.
Friday Night
A 20 percent chance of showers between 1am and 4am. Partly cloudy, with a low around 40. Calm wind.
Saturday
Mostly sunny, with a high near 61. Calm wind becoming north around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 38. Light and variable wind.
Sunday
Sunny, with a high near 75.
Sunday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers after 1am. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 68.
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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:
3:16 am CDT May 1, 2026
Forecast Valid:
3am CDT May 1, 2026-6pm CDT May 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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