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.

Thunderstorm in Vicinity Light Rain

77°F

25°C

Humidity 77%
Wind Speed SW 13 mph
Barometer 29.90 in (1011.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Jun 9:52 pm CDT
Extended Forecast for

Dowell IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 69. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 85. Northwest wind 6 to 9 mph.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming south 5 to 9 mph in the morning.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South wind around 7 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. South wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 76. South wind 6 to 9 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South wind 6 to 10 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 75. South wind 3 to 7 mph.

    Low: 75 °F

    Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 69. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Juneteenth
Mostly sunny, with a high near 85. Northwest wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 67. Light and variable wind.
Friday
Sunny, with a high near 89. Calm wind becoming south 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 72. South wind around 7 mph.
Saturday
Sunny, with a high near 93. South wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 76. South wind 6 to 9 mph.
Sunday
Sunny, with a high near 94. South wind 6 to 10 mph.
Sunday Night
Clear, with a low around 75. South wind 3 to 7 mph.
Monday
Sunny, with a high near 94. South wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.92°N 89.22°W
Last Update:
10:46 pm CDT Jun 18, 2025
Forecast Valid:
10pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation