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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

57°F

14°C

Humidity 83%
Wind Speed N 9 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 26 Dec 7:52 pm CST
Extended Forecast for

Grand Tower IL

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 48. North wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind becoming south southeast 5 to 9 mph in the morning.

    High: 68 °F

    Areas Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. South wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 71. South southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

    High: 71 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Rain showers before midnight, then a chance of rain and snow showers. Some thunder is also possible. Low around 24. Blustery, with a southwest wind 17 to 20 mph becoming northwest in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 80%.

    Low: 24 °F

    Blustery.
    Showers then
    Chance
    Rain/Snow

  • Monday

    Monday: Sunny, with a high near 30. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Southwest wind around 5 mph.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 48. North wind around 5 mph becoming calm in the evening.
Saturday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind becoming south southeast 5 to 9 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 61. South wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 71. South southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Sunday Night
Rain showers before midnight, then a chance of rain and snow showers. Some thunder is also possible. Low around 24. Blustery, with a southwest wind 17 to 20 mph becoming northwest in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Monday
Sunny, with a high near 30. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 37. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. Southwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 44. West northwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 23. Northwest wind around 6 mph.
New Year's Day
Mostly sunny, with a high near 33. North northwest wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 17. North wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 32. Light and variable wind becoming east northeast around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Tower IL
 37.64°N 89.52°W
Last Update:
6:36 pm CST Dec 26, 2025
Forecast Valid:
8pm CST Dec 26, 2025-6pm CST Jan 2, 2026
 
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Additional Resources

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Chance of Precipitation