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

52°F

11°C

Humidity 98%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 52°F (11°C)
Visibility 1.00 mi
Last update 25 Dec 3:55 am CST
Extended Forecast for

Grantfork IL

Dense Fog Advisory December 25, 04:16am until December 25, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 25, 04:16am until December 25, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Christmas Day

    High: 64 °F

    Dense Fog

  • Tonight

    Tonight: Patchy dense fog between 9pm and 11pm. Otherwise, mostly cloudy, with a low around 56. East wind 6 to 9 mph becoming south after midnight.

    Low: 56 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69. Southwest wind 6 to 11 mph becoming northwest in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 65. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 65 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of rain and thunderstorms between midnight and 3am, then a slight chance of rain after 3am. Cloudy, with a low around 56. Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of rain, then rain likely and possibly a thunderstorm after noon. Cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 40%.

    Low: 19 °F

    Blustery.
    Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Christmas Day
Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 64. Calm wind becoming east around 6 mph in the afternoon.
Tonight
Patchy dense fog between 9pm and 11pm. Otherwise, mostly cloudy, with a low around 56. East wind 6 to 9 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 69. Southwest wind 6 to 11 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 45. Light and variable wind.
Saturday
Mostly cloudy, with a high near 65. Light east wind becoming southeast 5 to 10 mph in the morning.
Saturday Night
A slight chance of rain and thunderstorms between midnight and 3am, then a slight chance of rain after 3am. Cloudy, with a low around 56. Chance of precipitation is 20%.
Sunday
A chance of rain, then rain likely and possibly a thunderstorm after noon. Cloudy, with a high near 66. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 40%.
Monday
Sunny, with a high near 27. Blustery.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grantfork IL
 38.83°N 89.68°W (Elev. 551 ft)
Last Update:
3:16 am CST Dec 25, 2025
Forecast Valid:
4am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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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