Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

69°F

21°C

Humidity 33%
Wind Speed SW 15 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 3 May 6:52 pm CDT
Extended Forecast for

Anna ILSimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 55. South southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. Southwest wind 9 to 18 mph, with gusts as high as 30 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am.  Partly cloudy, with a low around 58. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  High near 69. South wind around 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%.

    High: 69 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers.  Low around 46. West wind 10 to 13 mph becoming north after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 90%.

    Low: 46 °F

    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers.  Partly sunny, with a high near 60. North northeast wind around 9 mph.

    High: 60 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 45. North wind 5 to 7 mph.

    Low: 45 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 64. North northwest wind 6 to 9 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Light and variable wind.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. South southwest wind around 10 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 79. Southwest wind 9 to 18 mph, with gusts as high as 30 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Partly cloudy, with a low around 58. South southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 69. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 46. West wind 10 to 13 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 60. North northeast wind around 9 mph.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 45. North wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 64. North northwest wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 46. Light and variable wind.
Friday
Sunny, with a high near 71. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 52. Southwest wind 3 to 7 mph.
Saturday
Sunny, with a high near 74. Northwest wind 5 to 8 mph.
Saturday Night
A slight chance of showers. Mostly clear, with a low around 55. Light east southeast wind.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76. Southeast wind 5 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Anna ILSimilar City Names
 37.45°N 89.24°W
5:31 pm CDT May 3, 2026
7pm CDT May 3, 2026-6pm CDT May 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database