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

77°F

25°C

Humidity 85%
Wind Speed N 6 mph
Barometer 30.04 in (1016.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Oct 4:52 pm CDT
Extended Forecast for

Dowell IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 78. Calm wind.

    High: 78 °F

    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 66. Calm wind. Chance of precipitation is 40%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Increasing clouds, with a low around 51. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 58. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 29 mph.

    High: 58 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. North northwest wind 10 to 16 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62. North northeast wind 7 to 10 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Calm wind becoming south southeast around 6 mph in the morning.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 78. Calm wind.
Tonight
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 66. Calm wind. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Increasing clouds, with a low around 51. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 58. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 41. North northwest wind 10 to 16 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 62. North northeast wind 7 to 10 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 69. Calm wind becoming south southeast around 6 mph in the morning.
Sunday Night
Mostly clear, with a low around 41. Calm wind.
Monday
Mostly sunny, with a high near 73. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 45. Calm wind.
Tuesday
Mostly sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
Last Update:
5:06 pm CDT Oct 14, 2026
Forecast Valid:
5pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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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