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

83°F

28°C

Humidity 23%
Wind Speed NW 9 mph
Barometer 29.89 in (1011.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 Apr 4:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Mostly clear, with a low around 61. Calm wind becoming south around 5 mph after midnight.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 50. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.

    Low: 50 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 55. Northwest wind around 14 mph, with gusts as high as 25 mph.

    High: 55 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 61. Calm wind becoming south around 5 mph after midnight.
Friday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 50. South wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Saturday
A 50 percent chance of showers. Mostly cloudy, then gradually becoming sunny, with a steady temperature around 55. Northwest wind around 14 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 42. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 59.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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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:
2:41 pm CDT Apr 16, 2026
Forecast Valid:
5pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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