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.

Partly Cloudy

75°F

24°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 30.02 in (1015.4 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 15 Jul 5:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 88. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms and
    Patchy Fog

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 74. South wind 3 to 5 mph.

    Low: 74 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest around 6 mph in the morning.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Southwest wind around 6 mph.

    Low: 76 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. West wind 5 to 7 mph.

    High: 91 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87.

    High: 87 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.

    Low: 74 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 88. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 74. South wind 3 to 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest around 6 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Southwest wind around 6 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. West wind 5 to 7 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 93.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
4:21 am CDT Jul 15, 2025
Forecast Valid:
5am CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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