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

80°F

27°C

Humidity 42%
Wind Speed S 10 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 7 Oct 5:52 pm CDT
Extended Forecast for

4 Miles ESE Tamaroa IL

  • Tonight

    Tonight: Clear, with a low around 58. West southwest wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming south southeast 5 to 8 mph in the morning.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. South southeast wind 3 to 5 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light south southeast wind becoming east southeast 8 to 13 mph in the morning.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 58. East northeast wind 8 to 10 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 77. East northeast wind around 11 mph becoming northwest in the afternoon.

    High: 77 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 58. West southwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph.
Thursday Night
Clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south southeast 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 59. South southeast wind 3 to 5 mph.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light south southeast wind becoming east southeast 8 to 13 mph in the morning.
Saturday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 58. East northeast wind 8 to 10 mph. Chance of precipitation is 80%.
Sunday
Partly sunny, with a high near 77. East northeast wind around 11 mph becoming northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 57. Light and variable wind.
Columbus Day
Mostly sunny, with a high near 86. Light southwest wind increasing to 8 to 13 mph in the morning.
Monday Night
Mostly clear, with a low around 57. South wind 7 to 9 mph.
Tuesday
Sunny, with a high near 75. West wind 9 to 16 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 49. North northeast wind 6 to 9 mph.
Wednesday
A slight chance of showers. Sunny, with a high near 73. East wind 6 to 9 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:
1:50 pm CDT Oct 7, 2026
Forecast Valid:
6pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation