Severe Thunderstorms Possible From The Plains To The Great Lakes, Heat Wave To Continue Over The Southern U.S.

Scattered strong to severe thunderstorms capable of damaging winds, large hail, isolated tornadoes, and heavy rainfall will be possible through tonight from the central Plains to the Great Lakes and Northeast U.S. The heavy rainfall could lead to localized flash flooding. Excessive heat will persist across the southern Plains and Desert Southwest early this week. Read More >

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

91°F

33°C

Humidity 57%
Wind Speed SW 14 G 21 mph
Barometer 29.92 in (1012.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 18 Aug 11:52 am CDT
Extended Forecast for

De Soto IL

  • This
    Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Partly sunny, with a high near 92. South southwest wind around 11 mph, with gusts as high as 18 mph.

    Chance
    T-storms

    High: 92 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 73. South wind 3 to 8 mph.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 73 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 92. Heat index values as high as 105. South southwest wind 3 to 7 mph.

    Slight Chance
    T-storms

    High: 92 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 72. Calm wind.

    Partly Cloudy

    Low: 72 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.

    Mostly Sunny

    High: 93 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Calm wind.

    Slight Chance
    T-storms

    Low: 73 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 91. Calm wind becoming west northwest around 5 mph in the afternoon.

    Chance
    T-storms

    High: 91 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Calm wind.

    Chance
    T-storms

    Low: 71 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.

    Chance
    T-storms

    High: 85 °F

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 92. South southwest wind around 11 mph, with gusts as high as 18 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. South wind 3 to 8 mph.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 92. Heat index values as high as 105. South southwest wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 72. Calm wind.
Tuesday
Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Calm wind becoming west northwest around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 66. Calm wind.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming east around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 65. East northeast wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.
Click Map For Forecast
Point Forecast:
De Soto IL
 37.81°N 89.23°W
9:15 am CDT Aug 18, 2019
12pm CDT Aug 18, 2019-6pm CDT Aug 24, 2019
 
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Additional Resources

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Hourly Weather Forecast

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