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.

Mostly Cloudy

80°F

27°C

Humidity 69%
Wind Speed E 5 mph
Barometer 30.03 in (1016.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Aug 5:52 pm CDT
Extended Forecast for

Ava IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 65. East northeast wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Light east wind.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Light east southeast wind.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Light southeast wind.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69. Light east southeast wind.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming south southeast around 6 mph in the morning.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South southeast wind around 6 mph.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 65. East northeast wind around 6 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 66. Light east wind.
Wednesday
Sunny, with a high near 88. Calm wind.
Wednesday Night
Mostly clear, with a low around 68. Light east southeast wind.
Thursday
Sunny, with a high near 90. Light southeast wind.
Thursday Night
Mostly clear, with a low around 69. Light east southeast wind.
Friday
Sunny, with a high near 90. Calm wind becoming south southeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 71. South southeast wind around 6 mph.
Saturday
Sunny, with a high near 91. South wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 72. South southeast wind around 6 mph.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. South wind 5 to 7 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 6 mph.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. South southwest wind 5 to 7 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:
5:01 pm CDT Aug 4, 2025
Forecast Valid:
6pm CDT Aug 4, 2025-6pm CDT Aug 11, 2025
 
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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