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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

92°F

33°C

Humidity 56%
Wind Speed SE 3 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 17 Aug 5:52 pm CDT
Extended Forecast for

4 Miles SE Tamaroa IL

Heat Advisory August 17, 06:50pm until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 06:50pm until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 96 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 7am. Mostly sunny, with a high near 90. Light north wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. North northeast wind 6 to 9 mph.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. North wind 6 to 10 mph.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 74. Calm wind.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming east southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96. Calm wind becoming west northwest around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
A chance of showers, with thunderstorms also possible after 7am. Mostly sunny, with a high near 90. Light north wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 67. North northeast wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 88. North wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 66. North northeast wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Calm wind becoming north 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 67. North wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 90. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. North wind 3 to 6 mph.
Sunday
Sunny, with a high near 84. Light north northwest wind increasing to 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Tamaroa IL
 38.08°N 89.18°W
Last Update:
6:31 pm CDT Aug 17, 2025
Forecast Valid:
6pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation