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

44°F

7°C

Humidity 100%
Wind Speed NE 3 mph
Barometer 30.24 in (1024.1 mb)
Dewpoint 44°F (7°C)
Visibility 6.00 mi
Last update 24 Dec 2:51 am CST
Extended Forecast for

Saint Louis MO

Dense Fog Advisory December 24, 03:00am until December 24, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 24, 03:00am until December 24, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 47 °F

    Areas Dense
    Fog

  • Wednesday

    Wednesday: Patchy drizzle between 7am and noon. Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 65. East wind 5 to 7 mph becoming south in the afternoon.

    High: 65 °F

    Patchy
    Drizzle and
    Dense Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: Patchy fog before midnight, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 54. South wind around 6 mph becoming light and variable after midnight.

    Low: 54 °F

    Patchy Fog

  • Christmas Day

    Christmas Day: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 66. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. East wind around 7 mph becoming southwest after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °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 71.

    High: 71 °F

    Partly Sunny

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, cloudy, with a low around 47. Northeast wind 3 to 5 mph.
Wednesday
Patchy drizzle between 7am and noon. Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 65. East wind 5 to 7 mph becoming south in the afternoon.
Wednesday Night
Patchy fog before midnight, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 54. South wind around 6 mph becoming light and variable after midnight.
Christmas Day
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 66. Light and variable wind becoming east around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 57. East wind around 7 mph becoming southwest after midnight.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A chance of rain before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 28.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
Last Update:
2:46 am CST Dec 24, 2025
Forecast Valid:
3am CST Dec 24, 2025-6pm CST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation