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.

Fair

54°F

12°C

Humidity 64%
Wind Speed SW 5 mph
Barometer 30.10 in (1019.6 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 8 Nov 5:52 pm CST
Extended Forecast for

Anna IL

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, clear, with a low around 40. Light and variable wind.

    Low: 40 °F

    Clear then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, sunny, with a high near 67. Calm wind becoming west southwest around 5 mph.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Calm wind.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Calm wind becoming southwest around 5 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Light south southwest wind.

    Low: 46 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: A 30 percent chance of showers after noon. Mostly sunny, with a high near 70. Light south southwest wind becoming southwest 5 to 10 mph in the morning.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 46. North northwest wind 7 to 13 mph.

    Low: 46 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 54. North northwest wind 14 to 17 mph, with gusts as high as 23 mph.

    High: 54 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34. North northwest wind 7 to 13 mph.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, clear, with a low around 40. Light and variable wind.
Monday
Patchy fog before 9am. Otherwise, sunny, with a high near 67. Calm wind becoming west southwest around 5 mph.
Monday Night
Clear, with a low around 44. Calm wind.
Tuesday
Sunny, with a high near 69. Calm wind becoming southwest around 5 mph.
Tuesday Night
Mostly clear, with a low around 46. Light south southwest wind.
Veterans Day
A 30 percent chance of showers after noon. Mostly sunny, with a high near 70. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 46. North northwest wind 7 to 13 mph.
Thursday
Partly sunny, with a high near 54. North northwest wind 14 to 17 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 34. North northwest wind 7 to 13 mph.
Friday
Mostly sunny, with a high near 48. North northwest wind 7 to 11 mph.
Friday Night
Mostly clear, with a low around 29. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 52. Calm wind becoming northwest around 6 mph.
Saturday Night
Mostly clear, with a low around 33. Calm wind.
Sunday
Sunny, with a high near 60. Calm wind becoming southwest around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
Last Update:
6:01 pm CST Nov 8, 2026
Forecast Valid:
6pm CST Nov 8, 2026-6pm CST Nov 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation