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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 30.06 in (1017.4 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 14 Oct 11:52 pm CDT
Extended Forecast for

Anna IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Patchy dense fog. Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms and
    Patchy Dense
    Fog

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after noon. Patchy dense fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 87 °F

    Chance
    T-storms and
    Patchy Dense
    Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am. Increasing clouds, with a low around 51. Southwest wind 7 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 28 mph.

    High: 59 °F

    Chance
    Showers then
    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61. North northeast wind 7 to 10 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the morning.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Patchy dense fog. Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after noon. Patchy dense fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am. Increasing clouds, with a low around 51. Southwest wind 7 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.
Friday
A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 43. North wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 61. North northeast wind 7 to 10 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 42. Calm wind.
Monday
Mostly sunny, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 46. Calm wind.
Tuesday
Mostly sunny, with a high near 74. Light southeast wind.
Tuesday Night
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.48°N 89.22°W
Last Update:
12:01 am CDT Oct 15, 2026
Forecast Valid:
12am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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Chance of Precipitation