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Severe Thunderstorms With Heavy Rain Possible from the Upper Midwest to the Mid-Atlantic; Excessive Heat For Central U.S.

Storms will move from the Upper Great Lakes to the Ohio Valley/Lower Great Lakes into the northern Mid-Atlantic through the day. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat warnings and heat advisories are in place for states in the Central Plains, the Southeast, and the Mid-Atlantic. Localized flash flooding may occur in the Southwest. Read More >

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

83°F

28°C

Humidity 79%
Wind Speed SW 6 mph
Barometer 29.91 in (1012.3 mb)
Dewpoint 76°F (24°C)
Visibility NA
Heat Index91°F (33°C)
Last update 22 Jul 7:56 am CDT
Extended Forecast for

Mount Vernon IL

Excessive Heat Warning until July 23, 07:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 23, 07:00pm

    NOW until
    7:00pm Sun

    Excessive Heat Warning

  • Today

    Today: Sunny and hot, with a high near 99. Heat index values as high as 114. South southwest wind 9 to 15 mph, with gusts as high as 24 mph.

    Hot

    High: 99 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 75. South southwest wind 8 to 13 mph becoming west after midnight.

    Chance
    T-storms

    Low: 75 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 93. West northwest wind around 5 mph.

    Slight Chance
    T-storms

    High: 93 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 70. Light west wind.

    Slight Chance
    T-storms

    Low: 70 °F

  • Monday

    Monday: Mostly sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.

    Mostly Sunny

    High: 89 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 67. Light east northeast wind.

    Mostly Clear

    Low: 67 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 89. Light east northeast wind.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 89 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 68. Light east wind.

    Partly Cloudy

    Low: 68 °F

Detailed Forecast

Today
Sunny and hot, with a high near 99. Heat index values as high as 114. South southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. South southwest wind 8 to 13 mph becoming west after midnight.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 93. West northwest wind around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. Light west wind.
Monday
Mostly sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 67. Light east northeast wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Light east northeast wind.
Tuesday Night
Partly cloudy, with a low around 68. Light east wind.
Wednesday
Mostly sunny, with a high near 92. Light south wind.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Light south wind.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southeast wind around 6 mph becoming calm after midnight.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Calm wind becoming northeast around 6 mph in the afternoon.
Click Map For Forecast
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
7:16 am CDT Jul 22, 2017
8am CDT Jul 22, 2017-6pm CDT Jul 28, 2017
 
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