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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

85°F

29°C

Humidity 59%
Wind Speed E 9 mph
Barometer 30.06 in (1016.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 26 Jul 5:51 pm CDT
Extended Forecast for

Saint Charles MO

  • Tonight

    Tonight: Partly cloudy, with a low around 69. East wind around 6 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 85. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 3am. Mostly cloudy, with a low around 71. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. South wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.

    Low: 75 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.

    High: 95 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. East wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 85. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.
Saturday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 3am. Mostly cloudy, with a low around 71. South wind around 6 mph. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. South wind 5 to 7 mph. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South wind around 6 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 77.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MO
 38.78°N 90.51°W (Elev. 597 ft)
Last Update:
5:22 pm CDT Jul 26, 2024
Forecast Valid:
6pm CDT Jul 26, 2024-6pm CDT Aug 2, 2024
 
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