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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

86°F

30°C

Humidity 46%
Wind Speed S 5 mph
Barometer 29.92 in (1012.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Sep 4:52 pm CDT
Extended Forecast for

Anna ILSimilar City Names

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 67. South southeast wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. South southwest wind 6 to 10 mph. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. South southwest wind 3 to 6 mph. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 77. South southwest wind 3 to 6 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 66. Light southeast wind. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 77. East southeast wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 80%.

    High: 77 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Northwest wind 6 to 8 mph.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Partly cloudy, with a low around 59. Northwest wind 3 to 6 mph.

    Low: 59 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 67. South southeast wind 3 to 5 mph. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. South southwest wind 6 to 10 mph. Chance of precipitation is 70%.
Monday Night
Showers and possibly a thunderstorm. Low around 66. South southwest wind 3 to 6 mph. Chance of precipitation is 80%.
Tuesday
Showers likely, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 77. South southwest wind 3 to 6 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 66. Light southeast wind. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 77. East southeast wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 50%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Northwest wind 6 to 8 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 59. Northwest wind 3 to 6 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 75. North northwest wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 58. Light northwest wind.
Saturday
Sunny, with a high near 78. Calm wind becoming north around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 58. Calm wind.
Sunday
Sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Anna ILSimilar City Names
 37.45°N 89.24°W
Last Update:
5:01 pm CDT Sep 21, 2025
Forecast Valid:
5pm CDT Sep 21, 2025-6pm CDT Sep 28, 2025
 
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Additional Resources

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Chance of Precipitation