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

69°F

21°C

Humidity 93%
Wind Speed NE 3 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 21 Aug 1:52 am CDT
Extended Forecast for

5 Miles NNE Jacob IL

  • Overnight

    Overnight: Clear, with a low around 65. North northeast wind 3 to 5 mph.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, increasing clouds, with a high near 85. North northeast wind 5 to 8 mph.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. North northeast wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. Light east northeast wind.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. North wind 3 to 6 mph.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84. North northwest wind 5 to 8 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. North wind 3 to 6 mph.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 65. North northeast wind 3 to 5 mph.
Thursday
Patchy fog before 8am. Otherwise, increasing clouds, with a high near 85. North northeast wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 65. North northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 88. Calm wind becoming north northeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 64. Light east northeast wind.
Saturday
Sunny, with a high near 91. Calm wind becoming north northwest around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 64. North wind 3 to 6 mph.
Sunday
Sunny, with a high near 84. North northwest wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 58. North wind 3 to 6 mph.
Monday
Sunny, with a high near 79. North northwest wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 55. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. Light north wind.
Wednesday
Mostly sunny, with a high near 80. Calm wind becoming north around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Jacob IL
 37.82°N 89.51°W
Last Update:
11:31 pm CDT Aug 20, 2025
Forecast Valid:
1am CDT Aug 21, 2025-6pm CDT Aug 27, 2025
 
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Additional Resources

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