Dangerous Heat in the Central and Southern U.S.; Thunderstorms and Heavy Rain in the Northern Plains

Dangerous, prolonged heat is expected across portions of the Central and Southeast U.S. through July. Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley Tuesday, with damaging winds and large hail as the primary threats. Heavy rainfall could lead to areas of flooding across the northern Plains, Upper Midwest, Southeast and Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

77°F

25°C

Humidity 96%
Wind Speed Calm
Barometer 29.99 in (1015.3 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Jul 8:56 pm CDT
Extended Forecast for

Dix IL

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 73. Light east wind.

    Low: 73 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm.  Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 91. East southeast wind 3 to 7 mph.

    High: 91 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm  in the evening.

    Low: 74 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. Heat index values as high as 106. South wind 3 to 5 mph.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. Light south southeast wind.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. South southwest wind 3 to 6 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. Light south wind.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 91. South southwest wind 5 to 7 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Light south wind.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 73. Light east wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. East southeast wind 3 to 7 mph.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 93. Heat index values as high as 106. South wind 3 to 5 mph.
Wednesday Night
Mostly clear, with a low around 75. Light south southeast wind.
Thursday
Sunny, with a high near 94. South southwest wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 75. Light south wind.
Friday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South southwest wind 5 to 7 mph.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Light south wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. South southwest wind 3 to 6 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Light south wind.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 92. Light south southwest wind.
Sunday Night
Mostly clear, with a low around 74. Light and variable wind.
Monday
Mostly sunny, with a high near 92. Light and variable wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Dix IL
 38.45°N 88.94°W
7:31 pm CDT Jul 21, 2025
9pm CDT Jul 21, 2025-6pm CDT Jul 28, 2025
 
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Additional Resources

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Hourly Weather Forecast

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