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NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

65°F

18°C

Humidity 68%
Wind Speed NE 5 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 May 9:51 pm CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Tonight

    Tonight: Cloudy early, then becoming partly cloudy, with a low around 55. Northeast wind 5 to 7 mph.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 71. East wind 7 to 9 mph.

    High: 71 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 4am. Increasing clouds, with a low around 58. East wind 6 to 9 mph.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 69. East wind 7 to 10 mph. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 59. Northeast wind 6 to 9 mph becoming southwest after midnight.

    Low: 59 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79.

    High: 79 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Cloudy early, then becoming partly cloudy, with a low around 55. Northeast wind 5 to 7 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 71. East wind 7 to 9 mph.
Thursday Night
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 58. East wind 6 to 9 mph.
Friday
Showers, with thunderstorms also possible after 1pm. High near 69. East wind 7 to 10 mph. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 59. Northeast wind 6 to 9 mph becoming southwest after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Memorial Day
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
10:41 pm CDT May 20, 2026
Forecast Valid:
10pm CDT May 20, 2026-6pm CDT May 27, 2026
 
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