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.

Partly Cloudy

84°F

29°C

Humidity 55%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 3 Aug 2:52 pm CDT
Extended Forecast for

Oraville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. Light northeast wind.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 64. Calm wind.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 68. Light south southeast wind. Chance of precipitation is 20%.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the morning.

    High: 86 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Light south southeast wind.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 85. Light south southwest wind.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 85. Light northeast wind.
Tonight
Mostly clear, with a low around 63. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind.
Tuesday Night
Clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 68. Light south southeast wind. Chance of precipitation is 20%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the morning.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Light south southeast wind.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Light south southwest wind.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. Light south southwest wind.
Saturday Night
Mostly clear, with a low around 70. Light south wind.
Sunday
Sunny, with a high near 91. South southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oraville IL
 37.91°N 89.45°W
Last Update:
1:26 pm CDT Aug 3, 2026
Forecast Valid:
3pm CDT Aug 3, 2026-6pm CDT Aug 9, 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