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

Excessive Rainfall and Severe Thunderstorms Threaten the Southern U.S. Again Friday

Heavy to excessive rainfall is forecast for eastern Louisiana into central Alabama which could bring flash, urban, and riverine flooding Friday. Scattered severe thunderstorms with a few tornadoes, very large hail, and damaging winds are possible across parts of the Gulf Coast States Friday and Friday night. Read More >

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

81°F

27°C

Humidity 53%
Wind Speed SW 5 mph
Barometer 29.74 in (1006.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 May 2:54 pm CDT
Extended Forecast for

4 Miles S St. Charles County Smartt Airport MO

Flood Warning May 17, 03:32pm until May 19, 07:00am
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning May 17, 03:32pm until May 19, 07:00am

    NOW until 7:00am Sun

    Flood Warning

  • This Afternoon

    High: 80 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 60 °F

    Isolated
    T-storms then
    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Partly sunny, with a high near 80. South wind around 7 mph. Chance of precipitation is 30%.
Tonight
Isolated showers and thunderstorms before 8pm. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 69.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92.
Tuesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S St. Charles County Smartt Airport MO
 38.87°N 90.45°W (Elev. 436 ft)
Last Update:
2:37 pm CDT May 17, 2024
Forecast Valid:
3pm CDT May 17, 2024-6pm CDT May 24, 2024
 
Forecast Discussion
 
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Additional Resources

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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