Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

27°F

-3°C

Humidity 67%
Wind Speed SW 6 mph
Barometer 30.42 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 12 Jan 4:55 am CST
Extended Forecast for

Royalton IL

  • Today

    Today: Sunny, with a high near 51. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. South southwest wind 6 to 9 mph.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 22 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 40. Southwest wind 6 to 10 mph becoming west northwest after midnight.

    Low: 40 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of rain showers before 3pm, then a slight chance of rain and snow showers.  Mostly cloudy, with a high near 45. Breezy, with a northwest wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. Blustery, with a north northwest wind 14 to 20 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 32. North northwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 32 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. West wind 5 to 10 mph becoming south southwest in the evening.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 51. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 34. South southwest wind 6 to 9 mph.
Tuesday
Sunny, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind 6 to 10 mph becoming west northwest after midnight.
Wednesday
A slight chance of rain showers before 3pm, then a slight chance of rain and snow showers. Mostly cloudy, with a high near 45. Breezy, with a northwest wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 19. Blustery, with a north northwest wind 14 to 20 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 32. North northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 24. West wind 5 to 10 mph becoming south southwest in the evening.
Friday
Partly sunny, with a high near 44. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 22. West wind 8 to 10 mph.
Saturday
Partly sunny, with a high near 33. West northwest wind 9 to 15 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 12. West northwest wind 8 to 10 mph.
Sunday
Sunny, with a high near 29. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Royalton IL
 37.9°N 89.11°W
3:16 am CST Jan 12, 2026
5am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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