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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

A Few Clouds

84°F

29°C

Humidity 58%
Wind Speed N 13 G 22 mph
Barometer 30.03 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 22 Aug 1:52 pm CDT
Extended Forecast for

5 Miles SSW Pinckneyville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. North northwest wind around 9 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 63. Light north wind.

    Low: 63 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 84. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 86. Light east southeast wind. Chance of precipitation is 10%.

    High: 86 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 85. North northwest wind around 9 mph.
Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 63. Light north wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 84. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 84. Calm wind.
Monday Night
A slight chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 20%.
Tuesday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 86. Light east southeast wind. Chance of precipitation is 10%.
Tuesday Night
Partly cloudy, with a low around 66. Calm wind.
Wednesday
Partly sunny, with a high near 88. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 89. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 66. Light north wind.
Friday
Sunny, with a high near 87. Light north wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Pinckneyville IL
 38.02°N 89.41°W
Last Update:
1:26 pm CDT Aug 22, 2026
Forecast Valid:
3pm CDT Aug 22, 2026-6pm CDT Aug 28, 2026
 
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Additional Resources

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Chance of Precipitation