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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

66°F

19°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 30.13 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 6 Oct 7:45 am CDT
Extended Forecast for

Royalton IL

  • Today

    Today: A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 78. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%.

    High: 78 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers likely, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Light northwest wind becoming north northwest 5 to 10 mph in the morning.

    High: 78 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56. North wind 8 to 10 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Northeast wind 10 to 14 mph, with gusts as high as 18 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. Northeast wind 6 to 8 mph.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Northeast wind 6 to 9 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. East northeast wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75. Light east northeast wind.

    High: 75 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 78. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%.
Tonight
Showers likely, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Light northwest wind becoming north northwest 5 to 10 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 56. North wind 8 to 10 mph.
Wednesday
Sunny, with a high near 73. Northeast wind 10 to 14 mph, with gusts as high as 18 mph.
Wednesday Night
Clear, with a low around 47. Northeast wind 6 to 8 mph.
Thursday
Sunny, with a high near 72. Northeast wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 44. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 75. Light east northeast wind.
Friday Night
Partly cloudy, with a low around 52. Calm wind.
Saturday
Sunny, with a high near 78. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51. Light southeast wind.
Sunday
Sunny, with a high near 81. South southeast wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Royalton IL
 37.87°N 89.11°W
Last Update:
7:16 am CDT Oct 6, 2025
Forecast Valid:
7am CDT Oct 6, 2025-6pm CDT Oct 12, 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