Widespread Thunderstorms and Showers in the Southeast and Northwest

Widespread showers and thunderstorms may produce isolate instances of flash flooding across the Ozarks and Southeast through Friday. Scattered severe storms and heavy rain is expected across the Northwest U.S.. Gusty winds and low relative humidity will contribute to elevated fire weather over a portion of the northern Plains with a secondary threat in the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

75°F

24°C

Humidity 83%
Wind Speed NE 3 mph
Barometer 30.07 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 28 May 9:45 am CDT
Extended Forecast for

Royalton IL

  • Today

    Today: Partly sunny, with a high near 85. Light and variable wind becoming east northeast 5 to 10 mph in the morning.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. East northeast wind 5 to 7 mph.

    Low: 66 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny through mid morning, then becoming cloudy, with a high near 80. East wind around 7 mph.

    High: 80 °F

    Becoming
    Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am.  Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm  in the evening.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the morning.

    High: 82 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. East northeast wind 5 to 7 mph.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. East wind around 6 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. East northeast wind around 6 mph becoming calm  in the evening.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 85. Light and variable wind becoming east northeast 5 to 10 mph in the morning.
Tonight
Mostly cloudy, with a low around 66. East northeast wind 5 to 7 mph.
Friday
Mostly sunny through mid morning, then becoming cloudy, with a high near 80. East wind around 7 mph.
Friday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 63. East northeast wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 82. East wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 63. East northeast wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 83. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 61. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 82. Calm wind becoming northeast 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 60. Northeast wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Royalton IL
 37.87°N 89.11°W
9:11 am CDT May 28, 2026
9am CDT May 28, 2026-6pm CDT Jun 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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