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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

86°F

30°C

Humidity 70%
Wind Speed S 14 mph
Barometer 29.96 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 9 Jul 12:47 pm CDT
Extended Forecast for

2 Miles N Royalton IL

Flood Watch until July 12, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until July 12, 01:00am

    NOW until 1:00am Sun

    Flood Watch

  • This Afternoon

    High: 89 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am, then showers and possibly a thunderstorm after 4am. Low around 73. South wind around 6 mph. Chance of precipitation is 80%.

    Low: 73 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 90. West southwest wind 6 to 9 mph. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 9pm, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 71. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 71 °F

    T-storms
    Likely then
    Heavy Rain

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light north northeast wind. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming north northeast 5 to 8 mph in the morning. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 68. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 68 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a steady temperature around 89. South southwest wind 3 to 8 mph.
Tonight
Showers and thunderstorms, mainly before 3am, then showers and possibly a thunderstorm after 4am. Low around 73. South wind around 6 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 90. West southwest wind 6 to 9 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 9pm, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 71. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light north northeast wind. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming north northeast 5 to 8 mph in the morning. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 68. Northeast wind 5 to 7 mph becoming calm in the evening.
Monday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Light north northeast wind becoming east northeast 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 69. East northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind becoming east 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Royalton IL
 37.9°N 89.11°W
Last Update:
1:26 pm CDT Jul 9, 2026
Forecast Valid:
1pm CDT Jul 9, 2026-6pm CDT Jul 15, 2026
 
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