Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

63°F

17°C

Humidity 73%
Wind Speed SW 7 mph
Barometer 29.81 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 4 Nov 1:45 pm CST
Extended Forecast for

Royalton IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 59. West southwest wind 6 to 9 mph.

    High: 59 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 45. Light southwest wind.

    Low: 45 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 67. Light southwest wind becoming west southwest 5 to 9 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 43. Light northwest wind.

    Low: 43 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 58. North northwest wind 5 to 11 mph.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. Calm wind becoming north around 6 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Calm wind becoming northwest around 5 mph.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 59. West southwest wind 6 to 9 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 45. Light southwest wind.
Thursday
Sunny, with a high near 67. Light southwest wind becoming west southwest 5 to 9 mph.
Thursday Night
Increasing clouds, with a low around 43. Light northwest wind.
Friday
Partly sunny, with a high near 58. North northwest wind 5 to 11 mph.
Friday Night
Mostly clear, with a low around 33. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 55. Calm wind becoming north around 6 mph.
Saturday Night
Mostly clear, with a low around 31. Calm wind.
Sunday
Sunny, with a high near 59. Calm wind becoming northwest around 5 mph.
Sunday Night
Mostly clear, with a low around 33. Calm wind.
Monday
Sunny, with a high near 65. Calm wind becoming south southwest around 5 mph.
Monday Night
Clear, with a low around 36. Calm wind.
Tuesday
Sunny, with a high near 66. Calm wind becoming west around 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Royalton IL
 37.87°N 89.11°W
1:11 pm CST Nov 4, 2026
3pm CST Nov 4, 2026-6pm CST Nov 10, 2026
 
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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