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

66°F

19°C

Humidity 70%
Wind Speed S 3 mph
Barometer 29.95 in (1014.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Oct 10:52 pm CDT
Extended Forecast for

Ava IL

  • Tonight

    Tonight: Clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming east around 5 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. South wind 3 to 7 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. South southeast wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 81. South southeast wind 5 to 10 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 57. East northeast wind around 8 mph. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 76. Northeast wind 8 to 10 mph becoming northwest in the afternoon.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 59. Light and variable wind.
Thursday
Sunny, with a high near 84. Calm wind becoming east around 5 mph.
Thursday Night
Clear, with a low around 57. Calm wind.
Friday
Sunny, with a high near 86. South wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 60. South southeast wind 3 to 5 mph.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 81. South southeast wind 5 to 10 mph.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 57. East northeast wind around 8 mph. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 76. Northeast wind 8 to 10 mph becoming northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 58. Calm wind.
Columbus Day
Mostly sunny, with a high near 85. Light southwest wind becoming south southwest 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 57. Southwest wind around 8 mph.
Tuesday
Sunny, with a high near 74. Northwest wind 8 to 13 mph.
Tuesday Night
Mostly clear, with a low around 50. North wind 6 to 8 mph.
Wednesday
A slight chance of showers. Sunny, with a high near 72. East wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ava IL
 37.89°N 89.5°W
Last Update:
10:31 pm CDT Oct 7, 2026
Forecast Valid:
11pm CDT Oct 7, 2026-6pm CDT Oct 14, 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