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.

Fog/Mist

49°F

9°C

Humidity 90%
Wind Speed E 7 mph
Barometer 30.23 in (1023.9 mb)
Dewpoint 46°F (8°C)
Visibility 6.00 mi
Wind Chill46°F (8°C)
Last update 24 Dec 7:51 am CST
Extended Forecast for

Saint Ann MO

Dense Fog Advisory December 24, 08:26am until December 24, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 24, 08:26am until December 24, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Today

    High: 64 °F

    Cloudy

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 53. South wind around 6 mph becoming light and variable after midnight.

    Low: 53 °F

    Partly Cloudy
    then Patchy
    Fog

  • Christmas Day

    Christmas Day: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 64. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. East wind 6 to 8 mph becoming southwest after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70. Southwest wind 6 to 9 mph becoming northwest in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy, with a high near 64. Southeast wind 6 to 8 mph.
Tonight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 53. South wind around 6 mph becoming light and variable after midnight.
Christmas Day
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 64. Light and variable wind becoming east around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 57. East wind 6 to 8 mph becoming southwest after midnight.
Friday
Mostly sunny, with a high near 70. Southwest wind 6 to 9 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
A chance of rain before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Partly sunny, with a high near 35.
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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:
8:12 am CST Dec 24, 2025
Forecast Valid:
8am CST Dec 24, 2025-6pm CST Dec 30, 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