Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 30.06 in (1017.4 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 14 Oct 11:52 pm CDT
Extended Forecast for

Ava IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Patchy dense fog.  Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.

    Low: 70 °F

    Chance
    Showers and
    Patchy Dense
    Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 9am, then a chance of showers and thunderstorms after 9am.  Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers after 4am.  Mostly cloudy, with a low around 49. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Friday

    Friday: A 10 percent chance of showers before 7am.  Partly sunny, with a high near 56. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 29 mph.

    High: 56 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. North northwest wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60. North wind 6 to 10 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the morning.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy dense fog. Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 9am, then a chance of showers and thunderstorms after 9am. Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 49. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 56. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 39. North northwest wind 11 to 15 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 60. North wind 6 to 10 mph.
Saturday Night
Clear, with a low around 36. Calm wind.
Sunday
Sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 41. Calm wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 45. Calm wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Ava IL
 37.89°N 89.5°W
12:26 am CDT Oct 15, 2026
12am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database