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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

86°F

30°C

Humidity 43%
Wind Speed S 8 mph
Barometer 30.18 in (1021.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 3 Oct 3:52 pm CDT
Extended Forecast for

Dowell IL

  • This Afternoon

    This Afternoon: A slight chance of sprinkles. Sunny, with a steady temperature around 85. South southwest wind around 5 mph.

    High: 85 °F

    Slight Chance
    Sprinkles

  • Tonight

    Tonight: A slight chance of sprinkles before 9pm. Clear, with a low around 60. Light south wind.

    Low: 60 °F

    Slight Chance
    Sprinkles

  • Saturday

    Saturday: Sunny, with a high near 87. Calm wind becoming south southeast 5 to 9 mph in the morning.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. South southeast wind 3 to 6 mph.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 5 to 11 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. South southeast wind 3 to 6 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South southeast wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming north 5 to 8 mph in the morning.

    High: 82 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of sprinkles. Sunny, with a steady temperature around 85. South southwest wind around 5 mph.
Tonight
A slight chance of sprinkles before 9pm. Clear, with a low around 60. Light south wind.
Saturday
Sunny, with a high near 87. Calm wind becoming south southeast 5 to 9 mph in the morning.
Saturday Night
Clear, with a low around 57. South southeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 87. South wind 5 to 11 mph.
Sunday Night
Mostly clear, with a low around 65. South southeast wind 3 to 6 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South wind 3 to 7 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming north 5 to 8 mph in the morning.
Tuesday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 59. North northeast wind around 8 mph.
Wednesday
Mostly sunny, with a high near 76. Northeast wind 9 to 11 mph.
Wednesday Night
Mostly clear, with a low around 53. Northeast wind 6 to 8 mph.
Thursday
Sunny, with a high near 75. East wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Dowell IL
 37.95°N 89.25°W
Last Update:
4:30 pm CDT Oct 3, 2025
Forecast Valid:
4pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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Additional Resources

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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