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.

Fair

89°F

32°C

Humidity 57%
Wind Speed S 13 mph
Barometer 29.99 in (1014.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 27 Jun 4:52 pm CDT
Extended Forecast for

Oraville IL

Heat Advisory June 27, 05:10pm until June 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 27, 05:10pm until June 27, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 3 to 6 mph. Chance of precipitation is 70%.

    High: 87 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southwest wind around 6 mph.

    Low: 72 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 88. West wind 5 to 7 mph. Chance of precipitation is 80%.

    High: 88 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. West southwest wind 3 to 6 mph.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Southwest wind around 9 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 3 to 6 mph. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southwest wind around 6 mph.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 88. West wind 5 to 7 mph. Chance of precipitation is 80%.
Monday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. West southwest wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 87. North wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 66. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 88. Light northwest wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
Sunny, with a high near 90. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. South wind 3 to 6 mph.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 5 to 8 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:
4:32 pm CDT Jun 27, 2025
Forecast Valid:
5pm CDT Jun 27, 2025-6pm CDT Jul 4, 2025
 
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