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.

A Few Clouds

79°F

26°C

Humidity 45%
Wind Speed S 14 mph
Barometer 29.93 in (1013.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 Nov 1:51 pm CST
Extended Forecast for

Saint Ann MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. South wind 8 to 10 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. Southwest wind 7 to 9 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. North wind 6 to 8 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. North wind around 6 mph.

    High: 60 °F

    Sunny

  • Sunday Night

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

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of rain after noon. Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Rain Likely

  • Tuesday

    Tuesday: A 20 percent chance of rain before noon. Partly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 77. South wind 8 to 10 mph.
Tonight
Increasing clouds, with a low around 61. Southwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 78. Southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 46. North wind 6 to 8 mph.
Sunday
Sunny, with a high near 60. North wind around 6 mph.
Sunday Night
Mostly clear, with a low around 42.
Monday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 57.
Monday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Tuesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 55.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 40.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 53.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Thursday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Ann MO
 38.73°N 90.4°W (Elev. 597 ft)
Last Update:
10:46 am CST Nov 14, 2025
Forecast Valid:
2pm CST Nov 14, 2025-6pm CST Nov 20, 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