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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

76°F

24°C

Humidity 91%
Wind Speed SW 7 mph
Barometer 30.02 in (1016.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 27 Jun 8:52 pm CDT
Extended Forecast for

3 Miles NW Royalton IL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 73. Light southwest wind. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 87. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 80%.

    High: 87 °F

    Chance
    Showers then
    Showers

  • 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 becoming calm in the evening.

    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 southwest wind 5 to 7 mph. Chance of precipitation is 80%.

    High: 88 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North northwest wind 3 to 7 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. North northwest wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 73. Light southwest wind. Chance of precipitation is 20%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 87. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southwest wind around 6 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 88. West southwest wind 5 to 7 mph. Chance of precipitation is 80%.
Monday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 87. North northwest wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 67. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89. Light west 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 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Royalton IL
 37.92°N 89.16°W
Last Update:
9:02 pm CDT Jun 27, 2025
Forecast Valid:
9pm CDT Jun 27, 2025-6pm CDT Jul 4, 2025
 
Forecast Discussion
 
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Additional Resources

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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