Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

85°F

29°C

Humidity 61%
Wind Speed SW 10 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 25 Jun 11:52 am CDT
Extended Forecast for

Anna IL

Flood Watch June 25, 04:00pm until June 27, 07:00am
Click here for hazard details and duration
Flood Watch
  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 86. South southwest wind 5 to 7 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am.  Low around 70. South southwest wind around 5 mph becoming calm.  Chance of precipitation is 80%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly cloudy, with a high near 84. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm.  Cloudy, then gradually becoming partly cloudy, with a low around 72. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 88. Southwest wind 6 to 8 mph.  Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 73. South wind 5 to 7 mph.

    Low: 73 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 6 to 10 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 75. South southwest wind 5 to 9 mph.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 95. Light south southwest wind increasing to 5 to 9 mph in the morning.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 86. South southwest wind 5 to 7 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 70. South southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 84. South southwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 72. South southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South wind 5 to 7 mph.
Sunday
Sunny, with a high near 93. South southwest wind 6 to 10 mph.
Sunday Night
Clear, with a low around 75. South southwest wind 5 to 9 mph.
Monday
Sunny, with a high near 95. Light south southwest wind increasing to 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 76. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 96. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
11:36 am CDT Jun 25, 2026
12pm CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
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