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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fog/Mist

52°F

11°C

Humidity 97%
Wind Speed N 5 mph
Barometer 30.00 in (1015.9 mb)
Dewpoint 51°F (11°C)
Visibility 4.00 mi
Wind Chill51°F (11°C)
Last update 22 Nov 4:52 am CST
Extended Forecast for

Anna IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 57. North wind 3 to 6 mph.

    High: 57 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60. Calm wind.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 42. Light east southeast wind.

    Low: 42 °F

    Increasing
    Clouds

  • Monday

    Monday: A 50 percent chance of showers after noon. Mostly cloudy, with a high near 58. South southeast wind 3 to 8 mph.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers. Low around 51. South southeast wind 6 to 8 mph. Chance of precipitation is 100%.

    Low: 51 °F

    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Partly sunny, with a high near 65. South southwest wind 6 to 9 mph becoming west in the afternoon.

    High: 65 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Northwest wind 6 to 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. West northwest wind 6 to 10 mph.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 57. North wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 40. Calm wind.
Sunday
Sunny, with a high near 60. Calm wind.
Sunday Night
Increasing clouds, with a low around 42. Light east southeast wind.
Monday
A 50 percent chance of showers after noon. Mostly cloudy, with a high near 58. South southeast wind 3 to 8 mph.
Monday Night
Showers. Low around 51. South southeast wind 6 to 8 mph. Chance of precipitation is 100%.
Tuesday
A 20 percent chance of showers before noon. Partly sunny, with a high near 65. South southwest wind 6 to 9 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. Northwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 50. West northwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 30. West northwest wind 3 to 5 mph.
Thanksgiving Day
Sunny, with a high near 47. West northwest wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 29. West wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 46. West wind 5 to 7 mph becoming south southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
Last Update:
3:41 am CST Nov 22, 2025
Forecast Valid:
5am CST Nov 22, 2025-6pm CST Nov 28, 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