Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Mostly Cloudy

77°F

25°C

Humidity 62%
Wind Speed S 9 G 17 mph
Barometer 29.74 in (1007.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 Jun 5:56 pm CDT
Extended Forecast for

3 Miles NNW Macedonia IL

  • Tonight

    Tonight: Mostly clear, with a low around 60. Southwest wind 5 to 10 mph becoming light west southwest  in the evening.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Breezy, with a south southwest wind 5 to 15 mph increasing to 19 to 29 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 88 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 72. Breezy, with a west southwest wind 24 to 29 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 38 mph.  Chance of precipitation is 80%.

    Low: 72 °F

    Showers and
    Breezy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84. West southwest wind 8 to 10 mph becoming northwest in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 1am.  Mostly cloudy, with a low around 62. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 62 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 67. South southeast wind around 5 mph becoming calm  in the evening.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Southwest wind 5 to 10 mph becoming light west southwest in the evening.
Wednesday
Sunny, with a high near 88. Breezy, with a south southwest wind 5 to 15 mph increasing to 19 to 29 mph in the afternoon. Winds could gust as high as 39 mph.
Wednesday Night
Showers and possibly a thunderstorm. Low around 72. Breezy, with a west southwest wind 24 to 29 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. West southwest wind 8 to 10 mph becoming northwest in the afternoon.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 82. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. South southeast wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 84. South southeast wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Southwest wind 11 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Monday Night
A chance of showers. Partly cloudy, with a low around 65. North northeast wind 3 to 8 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 83. North northeast wind around 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Macedonia IL
 38.11°N 88.73°W
2:28 pm CDT Jun 16, 2026
5pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
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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