Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

83°F

28°C

Humidity 70%
Wind Speed SW 7 mph
Barometer 30.17 in (1020.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 25 Jun 12:51 am CDT
Extended Forecast for

Saint Louis MO

Heat Advisory June 25, 01:01am until June 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 25, 01:01am until June 26, 09:00pm

    NOW until 9:00pm Thu

    Heat Advisory

  • Overnight

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Partly cloudy, with a low around 77. South wind around 5 mph becoming calm  in the evening.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Heat index values as high as 103. Southwest wind 3 to 7 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. South wind 3 to 6 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 94.

    High: 94 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 77. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 96. Heat index values as high as 103. Southwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 77. South wind 3 to 6 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 94.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
12:52 am CDT Jun 25, 2025
1am CDT Jun 25, 2025-6pm CDT Jul 1, 2025
 
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Additional Resources

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