Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

16°C

61°F

Humidity 84%
Wind Speed W 7 km/h
Barometer 1016.9 mb (30.05 in)
Dewpoint 13°C (56°F)
Visibility 16 km
Last update 15 Jun 2:51 am CDT
Extended Forecast for

Saint Louis MO

  • Overnight

    Overnight: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °C

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 26. Calm wind becoming northwest 5 to 10 km/h in the morning.

    High: 26 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. Calm wind becoming south 5 to 8 km/h after midnight.

    Low: 16 °C

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm.  Increasing clouds, with a high near 28. Southwest wind 10 to 18 km/h, with gusts as high as 35 km/h.  Chance of precipitation is 40%.

    High: 28 °C

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 16. West wind 8 to 13 km/h becoming light and variable  in the evening.

    Low: 16 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 32. Breezy.

    High: 32 °C

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 22. Chance of precipitation is 90%.

    Low: 22 °C

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 27.

    High: 27 °C

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 16.

    Low: 16 °C

    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 14. Calm wind.
Monday
Sunny, with a high near 26. Calm wind becoming northwest 5 to 10 km/h in the morning.
Monday Night
Mostly clear, with a low around 16. Calm wind becoming south 5 to 8 km/h after midnight.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Increasing clouds, with a high near 28. Southwest wind 10 to 18 km/h, with gusts as high as 35 km/h. Chance of precipitation is 40%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 16. West wind 8 to 13 km/h becoming light and variable in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32. Breezy.
Wednesday Night
Showers and possibly a thunderstorm. Low around 22. Chance of precipitation is 90%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 27.
Thursday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 16.
Juneteenth
Sunny, with a high near 28.
Friday Night
Mostly clear, with a low around 17.
Saturday
Mostly sunny, with a high near 30.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 20.
Sunday
A 50 percent chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 m)
1:26 am CDT Jun 15, 2026
3am CDT Jun 15, 2026-6pm CDT Jun 21, 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