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

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

61°F

16°C

Humidity 84%
Wind Speed SE 13 mph
Barometer 30.22 in (1022.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 1 Nov 12:51 pm CST
Extended Forecast for

Clayton MO

  • This Afternoon

    This Afternoon: Cloudy, with a high near 64. Southeast wind 7 to 10 mph.

    High: 64 °F

    Cloudy

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, cloudy, with a low around 56. Southeast wind around 7 mph.

    Low: 56 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 7am. Otherwise, cloudy, with a high near 70. South wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 70 °F

    Patchy Fog
    then Cloudy

  • Monday Night

    Monday Night: A slight chance of rain before 4am, then a chance of rain after 5am. Mostly cloudy, with a low around 63. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain, with thunderstorms also possible after 9am. High near 72. South wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

    High: 72 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Rain Likely
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 64. Southeast wind 7 to 10 mph.
Tonight
Patchy fog after 11pm. Otherwise, cloudy, with a low around 56. Southeast wind around 7 mph.
Monday
Patchy fog before 7am. Otherwise, cloudy, with a high near 70. South wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
A slight chance of rain before 4am, then a chance of rain after 5am. Mostly cloudy, with a low around 63. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Tuesday
Rain, with thunderstorms also possible after 9am. High near 72. South wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Tuesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Wednesday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton MO
 38.64°N 90.32°W (Elev. 558 ft)
Last Update:
12:26 pm CST Nov 1, 2026
Forecast Valid:
1pm CST Nov 1, 2026-6pm CST Nov 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