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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

88°F

31°C

Humidity 62%
Wind Speed SW 12 mph
Barometer 30.05 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 27 Jun 11:47 am CDT
Extended Forecast for

5 Miles NW Goreville IL

Heat Advisory June 27, 12:42pm until June 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 27, 12:42pm until June 27, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 6 mph becoming calm in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind 3 to 5 mph.

    High: 90 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Light south southwest wind.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 70%.

    High: 89 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South southwest wind 3 to 5 mph.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 88. West southwest wind around 6 mph. Chance of precipitation is 70%.

    High: 88 °F

    T-storms
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 71. Light west southwest wind.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Southwest wind around 9 mph.
Tonight
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 6 mph becoming calm in the evening.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind 3 to 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Light south southwest wind.
Sunday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South southwest wind 3 to 5 mph.
Monday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 88. West southwest wind around 6 mph. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 71. Light west southwest wind.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. North wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 68. Calm wind.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 88. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 69. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Goreville IL
 37.6°N 89.04°W
Last Update:
11:47 am CDT Jun 27, 2025
Forecast Valid:
12pm CDT Jun 27, 2025-6pm CDT Jul 3, 2025
 
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