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.

Fog/Mist

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 30.17 in (1021.4 mb)
Dewpoint 60°F (16°C)
Visibility 3.00 mi
Last update 4 Oct 12:52 am CDT
Extended Forecast for

5 Miles S Pinckneyville IL

  • Overnight

    Overnight: Clear, with a low around 62. Calm wind.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Calm wind becoming south southeast 5 to 9 mph in the morning.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. South southeast wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 5 to 10 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South southeast wind 3 to 6 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 64. South southeast wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the morning.

    High: 82 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 58. North wind around 7 mph.

    Low: 58 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 62. Calm wind.
Saturday
Sunny, with a high near 87. Calm wind becoming south southeast 5 to 9 mph in the morning.
Saturday Night
Clear, with a low around 57. South southeast wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 87. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 64. South southeast wind 3 to 6 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South wind 3 to 7 mph. Chance of precipitation is 40%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 64. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the morning.
Tuesday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 58. North wind around 7 mph.
Wednesday
Mostly sunny, with a high near 76. Northeast wind 8 to 11 mph.
Wednesday Night
Mostly clear, with a low around 53. East northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 75. East wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 50. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Pinckneyville IL
 37.99°N 89.38°W
Last Update:
11:01 pm CDT Oct 3, 2025
Forecast Valid:
1am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation