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.

Light Rain

22°C

72°F

Humidity 91%
Wind Speed NE 17 km/h
Barometer 1012.8 mb (29.94 in)
Dewpoint 21°C (69°F)
Visibility 16 km
Last update 30 Jun 8:51 pm CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

Flood Advisory until June 30, 11:45pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until June 30, 11:45pm

    NOW until 11:45pm Mon

    Flood Advisory

  • Tonight

    Low: 20 °C

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. Northwest wind 11 to 18 km/h.

    High: 31 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. North wind 8 to 13 km/h becoming light northwest in the evening.

    Low: 21 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 32. Calm wind becoming northwest 5 to 8 km/h in the afternoon.

    High: 32 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. Northwest wind 5 to 10 km/h becoming calm in the evening.

    Low: 22 °C

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 33.

    High: 33 °C

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23.

    Low: 23 °C

    Mostly Clear

  • Independence Day

    Independence Day: Sunny, with a high near 34.

    High: 34 °C

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 20. Northwest wind 5 to 14 km/h. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 31. Northwest wind 11 to 18 km/h.
Tuesday Night
Mostly clear, with a low around 21. North wind 8 to 13 km/h becoming light northwest in the evening.
Wednesday
Sunny, with a high near 32. Calm wind becoming northwest 5 to 8 km/h in the afternoon.
Wednesday Night
Mostly clear, with a low around 22. Northwest wind 5 to 10 km/h becoming calm in the evening.
Thursday
Sunny, with a high near 33.
Thursday Night
Mostly clear, with a low around 23.
Independence Day
Sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 24.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 35.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 25.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 34.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 24.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 m)
Last Update:
7:52 pm CDT Jun 30, 2025
Forecast Valid:
9pm CDT Jun 30, 2025-6pm CDT Jul 7, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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