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.

Fair

55°F

13°C

Humidity 67%
Wind Speed SE 8 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 15 May 2:52 am CDT
Extended Forecast for

Dowell IL

  • Overnight

    Overnight: Mostly clear, with a low around 53. South southeast wind around 6 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 8am and 10am. Partly sunny, with a high near 83. South wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. South southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. South wind 8 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 89. South wind 9 to 17 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. South wind 14 to 16 mph, with gusts as high as 24 mph.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 53. South southeast wind around 6 mph.
Friday
A slight chance of showers and thunderstorms between 8am and 10am. Partly sunny, with a high near 83. South wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. South southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 66. South wind 8 to 10 mph.
Sunday
Sunny, with a high near 89. South wind 9 to 17 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 70. South wind 11 to 15 mph, with gusts as high as 23 mph.
Monday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.
Monday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. South wind 14 to 16 mph, with gusts as high as 24 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 14 to 18 mph, with gusts as high as 25 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. South southwest wind 6 to 13 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. North wind 8 to 10 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North northeast wind 5 to 8 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast wind 7 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
Last Update:
1:46 am CDT May 15, 2026
Forecast Valid:
3am CDT May 15, 2026-6pm CDT May 21, 2026
 
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Additional Resources

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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