National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

64°F

18°C

Humidity 84%
Wind Speed Calm
Barometer 30.17 in (1021.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 23 Jun 10:52 pm CDT
Extended Forecast for

4 Miles ESE Tamaroa IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 87. Light south southwest wind. Chance of precipitation is 50%.

    High: 87 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 68. Light south southeast wind. Chance of precipitation is 90%.

    Low: 68 °F

    Showers

  • Friday

    Friday: Showers before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers and thunderstorms likely after 1pm. High near 84. Light south southwest wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 90%.

    High: 84 °F

    Showers then
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 71 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the morning.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 3 to 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. Calm wind.
Wednesday
Mostly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 87. Light south southwest wind. Chance of precipitation is 50%.
Thursday Night
Showers and possibly a thunderstorm. Low around 68. Light south southeast wind. Chance of precipitation is 90%.
Friday
Showers before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers and thunderstorms likely after 1pm. High near 84. Light south southwest wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 90%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the morning.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 3 to 5 mph.
Sunday
Sunny, with a high near 94. South southwest wind 6 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 74. South wind 6 to 11 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 96. South southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 75. South wind 5 to 9 mph becoming light south southwest after midnight.
Tuesday
Sunny and hot, with a high near 98. South southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Tamaroa IL
 38.1°N 89.18°W
Last Update:
10:16 pm CDT Jun 23, 2026
Forecast Valid:
11pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation