Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fog/Mist

48°F

9°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 48°F (9°C)
Visibility 0.75 mi
Wind Chill46°F (8°C)
Last update 27 Dec 6:52 am CST
Extended Forecast for

Dowell IL

Dense Fog Advisory until December 27, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until December 27, 09:00am

    NOW until 9:00am Sat

    Dense Fog Advisory

  • Today

    High: 66 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Tonight

    Tonight: Cloudy, with a temperature falling to near 61 by 8pm, then rising to around 66 during the remainder of the night. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Cloudy

  • Sunday

    Sunday: Showers, mainly after 4pm.  High near 72. Breezy, with a south southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 80%.

    High: 72 °F

    Breezy.
    Mostly Cloudy
    then Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 9pm.  Low around 22. Breezy, with a southwest wind 23 to 25 mph becoming west northwest in the evening. Winds could gust as high as 36 mph.  Chance of precipitation is 90%.

    Low: 22 °F

    Showers and
    Breezy then
    Slight Chance
    Showers and
    Blustery

  • Monday

    Monday: Mostly sunny, with a high near 29. Blustery, with a west northwest wind 18 to 23 mph, with gusts as high as 34 mph.

    High: 29 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19. Northwest wind 10 to 17 mph, with gusts as high as 24 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 34. Northwest wind 6 to 10 mph becoming west southwest in the afternoon.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Southwest wind 5 to 7 mph.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Today
Patchy dense fog before 9am. Otherwise, mostly cloudy, with a high near 66. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Tonight
Cloudy, with a temperature falling to near 61 by 8pm, then rising to around 66 during the remainder of the night. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday
Showers, mainly after 4pm. High near 72. Breezy, with a south southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 9pm. Low around 22. Breezy, with a southwest wind 23 to 25 mph becoming west northwest in the evening. Winds could gust as high as 36 mph. Chance of precipitation is 90%.
Monday
Mostly sunny, with a high near 29. Blustery, with a west northwest wind 18 to 23 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 19. Northwest wind 10 to 17 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 34. Northwest wind 6 to 10 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 25. Southwest wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 44. West wind 7 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 26. West southwest wind 6 to 8 mph becoming northwest after midnight.
New Year's Day
Mostly sunny, with a high near 37. North northwest wind 7 to 10 mph.
Thursday Night
Partly cloudy, with a low around 17. North northwest wind 3 to 6 mph.
Friday
Partly sunny, with a high near 34. North northwest wind 5 to 7 mph becoming northeast in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
7:11 am CST Dec 27, 2025
7am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
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