National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast and Windy

68°F

20°C

Humidity 76%
Wind Speed S 26 G 40 mph
Barometer 29.63 in (1003.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 8 Jan 6:52 pm CST
Extended Forecast for

Dowell IL

Wind Advisory until January 9, 03:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until January 9, 03:00am

    NOW until 3:00am Fri

    Wind Advisory

  • Tonight

    Low: 51 °F

    Showers and
    Breezy then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a temperature falling to around 51 by 8am. West wind 6 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 54 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 42. North northeast wind 3 to 5 mph.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 48. West northwest wind 6 to 15 mph, with gusts as high as 21 mph.

    High: 48 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. West northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 35. Northwest wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 35 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 23. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 23 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 47. South southwest wind 6 to 14 mph, with gusts as high as 18 mph.

    High: 47 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 2am. Low around 51. Breezy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 90%.
Friday
Partly sunny, with a temperature falling to around 51 by 8am. West wind 6 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 42. North northeast wind 3 to 5 mph.
Saturday
A 20 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 48. West northwest wind 6 to 15 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 26. West northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 35. Northwest wind 6 to 15 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 23. Calm wind becoming south southwest around 5 mph after midnight.
Monday
Sunny, with a high near 47. South southwest wind 6 to 14 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 34. South southwest wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 54. South southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 36. South southwest wind 7 to 10 mph becoming west after midnight.
Wednesday
Mostly cloudy, with a high near 44. Northwest wind 7 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 25. North northwest wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 38. Northwest wind 7 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
Last Update:
5:21 pm CST Jan 8, 2026
Forecast Valid:
7pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation