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.

Overcast

50°F

10°C

Humidity 88%
Wind Speed E 13 mph
Barometer 30.21 in
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Wind Chill45°F (7°C)
Last update 24 Dec 9:45 am CST
Extended Forecast for

2 Miles WNW Glen Carbon IL

  • Today

    Today: Cloudy, with a high near 65. Southeast wind around 9 mph.

    High: 65 °F

    Cloudy

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. South wind 5 to 8 mph becoming light and variable after midnight.

    Low: 54 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Christmas Day

    Christmas Day: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 64. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. East wind 6 to 8 mph becoming south after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70. South wind 6 to 11 mph becoming northwest in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Saturday Night

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

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Today
Cloudy, with a high near 65. Southeast wind around 9 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. South wind 5 to 8 mph becoming light and variable after midnight.
Christmas Day
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 64. Calm wind becoming east 5 to 7 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. East wind 6 to 8 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 70. South wind 6 to 11 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Glen Carbon IL
 38.77°N 90°W (Elev. 551 ft)
Last Update:
9:51 am CST Dec 24, 2025
Forecast Valid:
10am CST Dec 24, 2025-6pm CST Dec 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