Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Partly Cloudy

84°F

29°C

Humidity 72%
Wind Speed S 16 G 29 mph
Barometer 29.74 in (1006.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 21 Jun 4:52 pm CDT
Extended Forecast for

Dowell IL

Tornado Watch June 21, 05:41pm until June 21, 09:00pm
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch June 21, 05:41pm until June 21, 09:00pm

    NOW until 9:00pm Sun

    Tornado Watch

  • This Afternoon

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall.  Low around 68. South southwest wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 90%.

    Low: 68 °F

    Heavy Rain

  • Monday

    Monday: A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms between 8am and 10am.  Mostly cloudy, with a high near 79. North northwest wind 8 to 10 mph.  Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. Light east northeast wind.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am.  Mostly clear, with a low around 63. Light and variable wind.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am.  Mostly cloudy, with a low around 68. Light and variable wind.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 82. South southwest wind around 8 mph, with gusts as high as 26 mph.
Tonight
Showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Low around 68. South southwest wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%.
Monday
A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms between 8am and 10am. Mostly cloudy, with a high near 79. North northwest wind 8 to 10 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 83. Light east northeast wind.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 63. Light and variable wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Light and variable wind.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 68. Light and variable wind.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Light and variable wind.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light and variable wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southwest wind around 6 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 6 to 9 mph.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Breezy, with a south southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
5:06 pm CDT Jun 21, 2026
5pm CDT Jun 21, 2026-6pm CDT Jun 28, 2026
 
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