Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

88°F

31°C

Humidity 52%
Wind Speed SW 12 mph
Barometer 29.94 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 25 Jun 5:45 pm CDT
Extended Forecast for

2 Miles E Johnston City IL

Flood Watch until June 27, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 27, 07:00am

    NOW until 7:00am Sat

    Flood Watch

  • Tonight

    Low: 71 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 86. South southwest wind 6 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    High: 86 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am.  Low around 72. West southwest wind 5 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%.

    Low: 72 °F

    Showers

  • Saturday

    Saturday: A chance of showers before 7am, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 88. West southwest wind 3 to 7 mph.  Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Light and variable wind.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of thunderstorms before 7am.  Sunny, with a high near 94. South southwest wind 5 to 9 mph.  Chance of precipitation is 30%.

    High: 94 °F

    Chance
    T-storms then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. South southwest wind 3 to 8 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 98. South southwest wind 3 to 6 mph.

    High: 98 °F

    Hot

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 71. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. South southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 72. West southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Saturday
A chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. West southwest wind 3 to 7 mph. Chance of precipitation is 50%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Light and variable wind.
Sunday
A chance of thunderstorms before 7am. Sunny, with a high near 94. South southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 76. South southwest wind 3 to 8 mph.
Monday
Sunny and hot, with a high near 98. South southwest wind 3 to 6 mph.
Monday Night
Clear, with a low around 76. South wind around 6 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 99. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 77. South southeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 100. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 78. Light and variable wind.
Thursday
Sunny and hot, with a high near 99. Light and variable wind.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Johnston City IL
 37.82°N 88.89°W
5:11 pm CDT Jun 25, 2026
6pm CDT Jun 25, 2026-6pm CDT Jul 2, 2026
 
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Additional Resources

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