National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

89°F

32°C

Humidity 47%
Wind Speed NW 7 mph
Barometer 30.05 in (1016.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 3 Jul 12:51 pm CDT
Extended Forecast for

Saint Louis MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 93. Light south wind.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light south wind.

    Low: 73 °F

    Mostly Clear

  • Independence Day

    Independence Day: Mostly sunny, with a high near 95. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. South wind 5 to 7 mph becoming calm after midnight.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. South wind 3 to 8 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73.

    Low: 73 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. Light south wind.
Tonight
Mostly clear, with a low around 73. Light south wind.
Independence Day
Mostly sunny, with a high near 95. Calm wind becoming southeast 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 73. South wind 5 to 7 mph becoming calm after midnight.
Saturday
Sunny, with a high near 95. South wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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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:
11:21 am CDT Jul 3, 2025
Forecast Valid:
1pm CDT Jul 3, 2025-6pm CDT Jul 9, 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