Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair and Breezy

77°F

25°C

Humidity 37%
Wind Speed S 21 G 32 mph
Barometer 29.70 in (1005.3 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 May 5:52 pm CDT
Extended Forecast for

Dowell IL

Lake Wind Advisory May 4, 06:25pm until May 4, 08:00pm
Click here for hazard details and duration
...
  •  
    Lake Wind Advisory May 4, 06:25pm until May 4, 08:00pm

    NOW until 8:00pm Mon

    Lake Wind Advisory

  • Tonight

    Low: 58 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms before noon, then showers and possibly a thunderstorm, mainly after noon. Some of the storms could produce heavy rainfall.  High near 67. South southwest wind 9 to 11 mph becoming east northeast in the afternoon.  Chance of precipitation is 90%.

    High: 67 °F

    Heavy Rain

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Some of the storms could produce heavy rainfall.  Low around 46. North wind 10 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%.

    Low: 46 °F

    Heavy Rain

  • Wednesday

    Wednesday: A 30 percent chance of showers.  Partly sunny, with a high near 61. North northeast wind around 10 mph.

    High: 61 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 43. North wind 6 to 8 mph.

    Low: 43 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 65. North northwest wind 5 to 9 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73. South southwest wind 6 to 11 mph.

    High: 73 °F

    Sunny

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 58. South southwest wind 10 to 18 mph, with gusts as high as 28 mph.
Tuesday
Showers and thunderstorms before noon, then showers and possibly a thunderstorm, mainly after noon. Some of the storms could produce heavy rainfall. High near 67. South southwest wind 9 to 11 mph becoming east northeast in the afternoon. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 46. North wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 61. North northeast wind around 10 mph.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 43. North wind 6 to 8 mph.
Thursday
Sunny, with a high near 65. North northwest wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 45. Calm wind becoming south southwest around 5 mph after midnight.
Friday
Sunny, with a high near 73. South southwest wind 6 to 11 mph.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 50. Southwest wind 6 to 8 mph.
Saturday
Sunny, with a high near 77. South southwest wind 6 to 8 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. South wind 3 to 5 mph.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. South wind 6 to 10 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North wind around 8 mph.
Monday
A slight chance of showers. Mostly sunny, with a high near 72. North wind 8 to 11 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
1:26 pm CDT May 4, 2026
6pm CDT May 4, 2026-6pm CDT May 11, 2026
 
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