Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

61°F

16°C

Humidity 93%
Wind Speed S 10 mph
Barometer 30.01 in (1016.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 5 Mar 9:52 am CST
Extended Forecast for

Anna IL

Flood Warning until March 5, 11:00am
Click here for hazard details and duration
...
  •  
    Flood Warning until March 5, 11:00am

    NOW until 11:00am Thu

    Flood Warning

  • Today

    High: 69 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers after 5am.  Patchy fog between 2am and 3am.  Otherwise, mostly cloudy, with a low around 59. South wind around 6 mph.  Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: Partly sunny, with a high near 76. South wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm after midnight.  Mostly cloudy, with a low around 63. South wind 10 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%.

    Low: 63 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon.  High near 72. South southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 90%.

    High: 72 °F

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 43. North northwest wind 5 to 8 mph becoming calm  after midnight.  Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Calm wind becoming west around 5 mph.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. South southwest wind 3 to 5 mph.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Today
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 69. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers after 5am. Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 59. South wind around 6 mph. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 76. South wind 7 to 16 mph, with gusts as high as 26 mph.
Friday Night
Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 63. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 72. South southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 43. North northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 64. Calm wind becoming west around 5 mph.
Sunday Night
Mostly clear, with a low around 49. South southwest wind 3 to 5 mph.
Monday
A slight chance of showers after noon. Mostly sunny, with a high near 74. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Monday Night
A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 61. South southwest wind around 10 mph.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 75. South southwest wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. South southwest wind around 14 mph, with gusts as high as 23 mph.
Wednesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 70. South southwest wind 13 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
9:46 am CST Mar 5, 2026
10am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
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