Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

68°F

20°C

Humidity 78%
Wind Speed S 6 mph
Barometer 29.61 in (1001.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 May 8:51 am CDT
Extended Forecast for

Saint Charles MO

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly before 5pm.  Mostly sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 28 mph.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 54. West wind 9 to 13 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. West wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Northwest wind around 11 mph, with gusts as high as 22 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers.  Partly sunny, with a high near 67.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 54. West wind 9 to 13 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 71. West wind 14 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 50. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 67. Northwest wind around 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 69.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 54.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 67.
Saturday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Memorial Day
Showers and thunderstorms likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MO
 38.78°N 90.51°W (Elev. 597 ft)
5:52 am CDT May 20, 2025
10am CDT May 20, 2025-6pm CDT May 26, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database