Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Light Drizzle Fog/Mist

39°F

4°C

Humidity 96%
Wind Speed SE 7 mph
Barometer 30.17 in (1022.5 mb)
Dewpoint 38°F (3°C)
Visibility 5.00 mi
Wind Chill34°F (1°C)
Last update 2 Mar 10:51 pm CST
Extended Forecast for

Saint Charles MO

  • Tonight

    Tonight: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3am.  Patchy fog after 3am. Low around 39. East wind around 5 mph.  Chance of precipitation is 90%.

    Low: 39 °F

    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain and thunderstorms before 3pm, then rain and possibly a thunderstorm, mainly after 3pm.  Patchy fog between 7am and 9am. High near 57. East wind 3 to 5 mph.  Chance of precipitation is 90%.

    High: 57 °F

    Rain and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm.  Low around 49. Northeast wind 6 to 8 mph.  Chance of precipitation is 90%.

    Low: 49 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm.  High near 63. Light and variable wind becoming southeast around 6 mph in the morning.  Chance of precipitation is 100%.

    High: 63 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm before midnight, then rain between midnight and 3am, then rain and possibly a thunderstorm after 3am.  Low around 55. South wind around 6 mph.  Chance of precipitation is 90%.

    Low: 55 °F

    Rain

  • Thursday

    Thursday: Rain likely and possibly a thunderstorm before 9am, then rain likely between 9am and noon, then a chance of rain and thunderstorms after noon.  Partly sunny, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain, with thunderstorms also possible after midnight.  Partly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance Rain
    then Chance
    T-storms

  • Friday

    Friday: A chance of rain and thunderstorms.  Partly sunny, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    T-storms then
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight.  Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Chance
    T-storms then
    Rain

Detailed Forecast

Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3am. Patchy fog after 3am. Low around 39. East wind around 5 mph. Chance of precipitation is 90%.
Tuesday
Rain and thunderstorms before 3pm, then rain and possibly a thunderstorm, mainly after 3pm. Patchy fog between 7am and 9am. High near 57. East wind 3 to 5 mph. Chance of precipitation is 90%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 49. Northeast wind 6 to 8 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. High near 63. Light and variable wind becoming southeast around 6 mph in the morning. Chance of precipitation is 100%.
Wednesday Night
Rain and possibly a thunderstorm before midnight, then rain between midnight and 3am, then rain and possibly a thunderstorm after 3am. Low around 55. South wind around 6 mph. Chance of precipitation is 90%.
Thursday
Rain likely and possibly a thunderstorm before 9am, then rain likely between 9am and noon, then a chance of rain and thunderstorms after noon. Partly sunny, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A chance of rain, with thunderstorms also possible after midnight. Partly cloudy, with a low around 56. Chance of precipitation is 50%.
Friday
A chance of rain and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 60. Chance of precipitation is 80%.
Saturday
Rain likely and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. Cloudy, with a high near 69. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 48.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 65.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 49.
Monday
A 30 percent chance of rain. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MO
 38.78°N 90.51°W (Elev. 597 ft)
10:30 pm CST Mar 2, 2026
11pm CST Mar 2, 2026-6pm CDT Mar 9, 2026
 
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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