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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fog

45°F

7°C

Humidity 100%
Wind Speed S 7 mph
Barometer 30.15 in (1021.1 mb)
Dewpoint 45°F (7°C)
Visibility 0.50 mi
Wind Chill41°F (5°C)
Last update 24 Nov 6:52 am CST
Extended Forecast for

Anna IL

Dense Fog Advisory November 24, 07:45am until November 24, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 24, 07:45am until November 24, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Today

    High: 52 °F

    Dense Fog
    then Showers
    Likely

  • Tonight

    Tonight: Showers, mainly before 5am. Temperature rising to around 56 by 5am. South wind 3 to 6 mph. Chance of precipitation is 90%.

    Low: 51 °F⇑

    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 64. West southwest wind 3 to 6 mph.

    High: 64 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Light west wind becoming west northwest 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 46. West northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West northwest wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 44. West northwest wind 3 to 8 mph.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear

Detailed Forecast

Today
Showers likely, mainly after 3pm. Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 52. South southeast wind 3 to 6 mph. Chance of precipitation is 60%.
Tonight
Showers, mainly before 5am. Temperature rising to around 56 by 5am. South wind 3 to 6 mph. Chance of precipitation is 90%.
Tuesday
A 40 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 64. West southwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 37. Light west wind becoming west northwest 6 to 11 mph in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 46. West northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 29. West northwest wind around 6 mph.
Thanksgiving Day
Sunny, with a high near 44. West northwest wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 24. Calm wind.
Friday
Mostly sunny, with a high near 42. Calm wind becoming north northeast around 5 mph.
Friday Night
A slight chance of snow showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. East southeast wind 3 to 6 mph.
Saturday
Rain and snow showers likely. Cloudy, with a high near 44. South southeast wind 6 to 9 mph.
Saturday Night
Showers likely. Cloudy, with a low around 38. South southeast wind around 7 mph.
Sunday
Showers likely. Cloudy, with a high near 51. South southeast wind around 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
Last Update:
3:16 am CST Nov 24, 2025
Forecast Valid:
7am CST Nov 24, 2025-6pm CST Nov 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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