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

55°F

13°C

Humidity 94%
Wind Speed S 12 mph
Barometer 30.05 in
Dewpoint 54°F (12°C)
Visibility 2.00 mi
Wind Chill52°F (11°C)
Last update 24 Dec 6:50 pm CST
Extended Forecast for

Brighton IL

Dense Fog Advisory until December 25, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 25, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Tonight

    Low: 50 °F

    Mostly Cloudy
    then Patchy
    Dense Fog

  • Christmas Day

    Christmas Day: Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 64. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 64 °F

    Dense Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55. East wind 6 to 8 mph becoming south after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 67. Southwest wind 6 to 11 mph becoming northwest in the afternoon.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. Northwest wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 57. Chance of precipitation is 50%.

    High: 57 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy dense fog after 1am. Otherwise, mostly cloudy, with a low around 50. South wind 5 to 8 mph becoming light and variable after midnight.
Christmas Day
Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 64. Light and variable wind becoming east 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 55. East wind 6 to 8 mph becoming south after midnight.
Friday
Sunny, with a high near 67. Southwest wind 6 to 11 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 45. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 57. Chance of precipitation is 50%.
Sunday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 18. Blustery.
Monday
Sunny, with a high near 27. Blustery.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brighton IL
 39.04°N 90.16°W (Elev. 653 ft)
Last Update:
4:46 pm CST Dec 24, 2025
Forecast Valid:
7pm CST Dec 24, 2025-6pm CST Dec 31, 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