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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.01 in (1015.7 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 14 Oct 10:52 am CDT
Extended Forecast for

Anna IL

  • Today

    Today: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 86. Light and variable wind becoming south southwest 5 to 10 mph in the morning.

    High: 86 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Increasing clouds, with a low around 54. South southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph.

    Low: 54 °F

    Mostly Clear
    then Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 61. Breezy, with a north northwest wind 17 to 20 mph, with gusts as high as 28 mph.

    High: 61 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. North wind 8 to 16 mph, with gusts as high as 24 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. Northeast wind 6 to 8 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming south 5 to 7 mph in the morning.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 80%.
Tonight
A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy through mid morning, then gradual clearing, with a high near 86. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Thursday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 54. South southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 61. Breezy, with a north northwest wind 17 to 20 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 42. North wind 8 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 61. Northeast wind 6 to 8 mph.
Saturday Night
Clear, with a low around 38. Calm wind.
Sunday
Sunny, with a high near 67. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 46. Light southeast wind.
Monday
Mostly sunny, with a high near 69. Calm wind becoming south around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 51. Calm wind.
Tuesday
Mostly sunny, with a high near 74. Calm wind becoming south southeast around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.45°N 89.24°W
Last Update:
11:01 am CDT Oct 14, 2026
Forecast Valid:
11am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation