National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fog/Mist

46°F

8°C

Humidity 97%
Wind Speed SE 6 mph
Barometer 30.12 in
Dewpoint 46°F (8°C)
Visibility 1.00 mi
Wind Chill43°F (6°C)
Last update 24 Nov 4:15 am CST
Extended Forecast for

3 Miles SSE Carlinville IL

Dense Fog Advisory November 24, 04:36am until November 24, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 24, 04:36am until November 24, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Today

    High: 51 °F

    Isolated
    Showers and
    Areas Dense
    Fog then
    Scattered
    Showers

  • Tonight

    Tonight: Showers, mainly before 4am. Low around 48. Southeast wind 5 to 9 mph becoming light south after midnight. Chance of precipitation is 100%.

    Low: 48 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon. Mostly cloudy, with a high near 58. Calm wind becoming west 5 to 7 mph in the morning.

    High: 58 °F

    Cloudy then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32. West wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 25 mph.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. Breezy, with a west wind 11 to 20 mph, with gusts as high as 29 mph.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Today
Isolated showers before 9am, then scattered showers after 1pm. Areas of dense fog before noon. Otherwise, cloudy, with a high near 51. South wind around 9 mph. Chance of precipitation is 50%.
Tonight
Showers, mainly before 4am. Low around 48. Southeast wind 5 to 9 mph becoming light south after midnight. Chance of precipitation is 100%.
Tuesday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 58. Calm wind becoming west 5 to 7 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 32. West wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Mostly sunny, with a high near 42. Breezy, with a west wind 11 to 20 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 23.
Thanksgiving Day
Sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 18.
Friday
Mostly sunny, with a high near 38.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 26.
Saturday
Rain and snow likely. Cloudy, with a high near 39. Chance of precipitation is 70%.
Saturday Night
Rain likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Carlinville IL
 39.25°N 89.86°W (Elev. 551 ft)
Last Update:
4:01 am CST Nov 24, 2025
Forecast Valid:
4am CST Nov 24, 2025-6pm CST Nov 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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