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.

Light Rain

71°F

22°C

Humidity 79%
Wind Speed S 14 mph
Barometer 29.87 in (1010.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Apr 2:51 pm CDT
Extended Forecast for

Saint Ann MO

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South wind around 13 mph, with gusts as high as 22 mph.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a slight chance of showers. Low around 63. Southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 84. West wind around 8 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. West wind around 5 mph becoming light and variable.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South wind around 13 mph, with gusts as high as 22 mph.
Tonight
Showers and thunderstorms before 4am, then a slight chance of showers. Low around 63. Southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 84. West wind around 8 mph.
Thursday Night
Mostly clear, with a low around 62. West wind around 5 mph becoming light and variable.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South wind 6 to 14 mph, with gusts as high as 24 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 65.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 78.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Ann MO
 38.71°N 90.4°W (Elev. 627 ft)
Last Update:
2:26 pm CDT Apr 15, 2026
Forecast Valid:
3pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation