Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

37°F

3°C

Humidity 54%
Wind Speed N 8 mph
Barometer 30.60 in (1036.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 28 Mar 3:52 am CDT
Extended Forecast for

Anna IL

Freeze Warning until March 28, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until March 28, 09:00am

    NOW until 9:00am Sat

    Freeze Warning

  • Overnight

    Low: 36 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 57. North northeast wind 5 to 7 mph becoming east southeast in the afternoon.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Southeast wind 3 to 6 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68. South wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78. South southwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. South southwest wind 15 to 18 mph, with gusts as high as 30 mph.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a steady temperature around 36. North northeast wind around 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 57. North northeast wind 5 to 7 mph becoming east southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 38. Southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 68. South wind 6 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 55. South wind around 11 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 78. South southwest wind 11 to 17 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 64. South wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 82. South southwest wind 15 to 18 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. South southwest wind 14 to 16 mph becoming west northwest after midnight. Winds could gust as high as 26 mph.
Wednesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers. Cloudy, with a high near 62. North wind 11 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 45. Northeast wind around 10 mph, with gusts as high as 18 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 57. Northeast wind around 10 mph, with gusts as high as 18 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47. East wind around 8 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 69. East wind 7 to 10 mph becoming south in the afternoon.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
1:26 am CDT Mar 28, 2026
4am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
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Additional Resources

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