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

58°F

14°C

Humidity 67%
Wind Speed S 5 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 9 Nov 5:52 pm CST
Extended Forecast for

4 Miles S Ava IL

  • Tonight

    Tonight: Clear, with a low around 45. Light southwest wind.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: A 30 percent chance of showers after noon. Mostly sunny, with a high near 70. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. North northwest wind 7 to 9 mph.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 47. North northwest wind 6 to 10 mph.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. Light north northwest wind.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 45. Light southwest wind.
Tuesday
Sunny, with a high near 70. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 47. Calm wind.
Veterans Day
A 30 percent chance of showers after noon. Mostly sunny, with a high near 70. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 45. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 53. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 33. North northwest wind 7 to 9 mph.
Friday
Sunny, with a high near 47. North northwest wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 29. Light north northwest wind.
Saturday
Sunny, with a high near 51. Calm wind.
Saturday Night
Mostly clear, with a low around 33. Calm wind.
Sunday
A slight chance of showers. Sunny, with a high near 56. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 40. Light south southeast wind.
Monday
Mostly sunny, with a high near 60. Calm wind becoming south around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Ava IL
 37.82°N 89.51°W
Last Update:
4:00 pm CST Nov 9, 2026
Forecast Valid:
6pm CST Nov 9, 2026-6pm CST Nov 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation