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.

Overcast

57°F

14°C

Humidity 72%
Wind Speed W 8 mph
Barometer 29.84 in (1010.2 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 4 Nov 6:51 pm CST
Extended Forecast for

Saint Ann MO

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 6 to 8 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 62. West wind 8 to 11 mph.

    High: 62 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 46. Northwest wind 5 to 8 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 55. North wind 8 to 11 mph.

    High: 55 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. North wind 5 to 7 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 6 to 8 mph.
Thursday
Increasing clouds, with a high near 62. West wind 8 to 11 mph.
Thursday Night
A slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 46. Northwest wind 5 to 8 mph. Chance of precipitation is 20%.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 55. North wind 8 to 11 mph.
Friday Night
Mostly clear, with a low around 37. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 65.
Monday Night
Clear, with a low around 44.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 45.
Veterans Day
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Ann MO
 38.73°N 90.37°W (Elev. 597 ft)
Last Update:
6:21 pm CST Nov 4, 2026
Forecast Valid:
7pm CST Nov 4, 2026-6pm CST Nov 11, 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