Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

52°F

11°C

Humidity 83%
Wind Speed W 6 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 6 Jan 8:52 pm CST
Extended Forecast for

2 Miles ESE Grand Tower IL

  • Tonight

    Tonight: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. South southeast wind 3 to 6 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 3pm.  High near 65. South southeast wind 7 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%.

    High: 65 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 55. South southwest wind 9 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers, mainly after noon.  Mostly cloudy, with a high near 62. West southwest wind 6 to 8 mph becoming north northeast in the afternoon.

    High: 62 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 44. Northeast wind 6 to 8 mph becoming west after midnight.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 51. West northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 51 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. West northwest wind 7 to 10 mph.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 37. Calm wind.
Wednesday
Mostly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 45. South southeast wind 3 to 6 mph.
Thursday
Showers, with thunderstorms also possible after 3pm. High near 65. South southeast wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 55. South southwest wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Friday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 62. West southwest wind 6 to 8 mph becoming north northeast in the afternoon.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 44. Northeast wind 6 to 8 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 51. West northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 28. West northwest wind 7 to 10 mph.
Sunday
Mostly sunny, with a high near 40. Northwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 26. Light and variable wind.
Monday
Sunny, with a high near 47. Light southwest wind becoming south southwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 30. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 50. West southwest wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Grand Tower IL
 37.62°N 89.46°W
9:46 pm CST Jan 6, 2026
9pm CST Jan 6, 2026-6pm CST Jan 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database