Sunday Brings Heat Relief For Some; Flash Flood Threat Along Cold Front

A cold front shifting across the Central Plains, Midwest, Great Lakes and Northeast on Sunday will bring some relief from the heat with cooler and drier air. Excessive heat holds Sunday roughly south of I-70. Heavy rain from thunderstorms along the front may bring flash flooding. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

76°F

24°C

Humidity 96%
Wind Speed S 3 mph
Barometer 29.94 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 21 Jul 1:15 am CDT
Extended Forecast for

Marion IL

Excessive Heat Warning until July 21, 07:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 21, 07:00pm

    NOW until
    7:00pm Sun

    Excessive Heat Warning

  • Overnight

    Overnight: Mostly clear, with a low around 75. Calm wind.

    Mostly Clear

    Low: 75 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 91. Southwest wind 5 to 9 mph.

    Mostly Sunny
    then Chance
    T-storms

    High: 91 °F

  • Sunday
    Night

    Sunday Night: Showers and thunderstorms likely, mainly after 10pm.  Mostly cloudy, with a low around 73. West southwest wind 3 to 6 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 73 °F

  • Monday

    Monday: Showers and thunderstorms likely, mainly before 1pm.  Mostly cloudy, with a high near 82. Calm wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 82 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 61. North wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Slight Chance
    T-storms

    Low: 61 °F

  • Tuesday

    Tuesday: Sunny, with a high near 81. North wind 6 to 9 mph.

    Sunny

    High: 81 °F

  • Tuesday
    Night

    Tuesday Night: Clear, with a low around 60. North wind around 6 mph becoming calm  in the evening.

    Clear

    Low: 60 °F

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon.

    Sunny

    High: 82 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Southwest wind 5 to 9 mph.
Sunday Night
Showers and thunderstorms likely, mainly after 10pm. Mostly cloudy, with a low around 73. West southwest wind 3 to 6 mph. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 82. Calm wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61. North wind 3 to 8 mph. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 81. North wind 6 to 9 mph.
Tuesday Night
Clear, with a low around 60. North wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. Calm wind.
Thursday
Sunny, with a high near 84. Light and variable wind.
Thursday Night
Mostly clear, with a low around 63. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. Calm wind.
Saturday
Sunny, with a high near 87. Calm wind becoming south southwest 5 to 7 mph in the morning.
Click Map For Forecast
Point Forecast:
Marion IL
 37.73°N 88.92°W
1:15 am CDT Jul 21, 2019
1am CDT Jul 21, 2019-6pm CDT Jul 27, 2019
 
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