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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

90°F

32°C

Humidity 59%
Wind Speed SW 10 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 27 Jun 2:45 pm CDT
Extended Forecast for

4 Miles NW Tunnel Hill IL

Heat Advisory June 27, 02:53pm until June 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 27, 02:53pm until June 27, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. 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 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 85. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light south southwest wind.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. West southwest wind 3 to 6 mph. Chance of precipitation is 90%.

    High: 86 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. Light west wind.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind around 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. 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 87. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.
Sunday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 85. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light south southwest wind.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. West southwest wind 3 to 6 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. Light west wind.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming north northwest around 6 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 67. Calm wind.
Wednesday
Mostly sunny, with a high near 87. Calm wind.
Wednesday Night
Mostly clear, with a low around 69. Calm wind.
Thursday
Sunny, with a high near 88. Light south southwest wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Tunnel Hill IL
 37.6°N 88.93°W
Last Update:
2:16 pm CDT Jun 27, 2025
Forecast Valid:
2pm CDT Jun 27, 2025-6pm CDT Jul 3, 2025
 
Forecast Discussion
 
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Additional Resources

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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