Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

89°F

32°C

Humidity 43%
Wind Speed SE 12 G 17 mph
Barometer 30.05 in (1016.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 5 Aug 1:51 pm CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

Flood Watch August 5, 10:00pm until August 6, 10:00am
Click here for hazard details and duration
Flood Watch
  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 91. South wind around 7 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am.  Low around 73. South wind around 6 mph becoming light and variable.  Chance of precipitation is 80%.

    Low: 73 °F

    Slight Chance
    T-storms then
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm.  High near 84. South wind 3 to 5 mph.  Chance of precipitation is 80%.

    High: 84 °F

    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 10pm.  Partly cloudy, then becoming cloudy toward daybreak, with a low around 72. Southeast wind 3 to 5 mph.

    Low: 72 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 88. Southwest wind around 6 mph.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 91. South wind around 7 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Low around 73. South wind around 6 mph becoming light and variable. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms, mainly before 1pm. High near 84. South wind 3 to 5 mph. Chance of precipitation is 80%.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, then becoming cloudy toward daybreak, with a low around 72. Southeast wind 3 to 5 mph.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 6 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.4°W (Elev. 597 ft)
1:26 pm CDT Aug 5, 2026
2pm CDT Aug 5, 2026-6pm CDT Aug 11, 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