National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed SW 3 mph
Barometer 30.20 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 7 Aug 8:45 am CDT
Extended Forecast for

2 Miles NNE Royalton IL

  • Today

    Today: Mostly sunny, with a high near 92. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. South southeast wind 3 to 5 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Light south southeast wind becoming south 5 to 9 mph in the morning.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 73. South wind 3 to 6 mph.

    Low: 73 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 94. South wind 5 to 9 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 72. South wind 3 to 7 mph.

    Low: 72 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South wind 5 to 8 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South wind 3 to 6 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind 5 to 8 mph.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 92. Calm wind becoming south southeast around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 72. South southeast wind 3 to 5 mph.
Friday
Sunny, with a high near 94. Light south southeast wind becoming south 5 to 9 mph in the morning.
Friday Night
Clear, with a low around 73. South wind 3 to 6 mph.
Saturday
Sunny, with a high near 94. South wind 5 to 9 mph.
Saturday Night
Clear, with a low around 72. South wind 3 to 7 mph.
Sunday
Sunny, with a high near 94. South wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 73. South wind 3 to 6 mph.
Monday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind 5 to 8 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southeast wind 3 to 6 mph.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southwest wind 3 to 7 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Royalton IL
 37.9°N 89.11°W
Last Update:
7:30 am CDT Aug 7, 2025
Forecast Valid:
9am CDT Aug 7, 2025-6pm CDT Aug 13, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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