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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

72°F

22°C

Humidity 88%
Wind Speed N 6 mph
Barometer 29.85 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 2 Aug 8:52 pm CDT
Extended Forecast for

3 Miles NNE Jacob IL

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Light north wind.

    Low: 64 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming north northeast around 5 mph.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, sunny, with a high near 87. Calm wind.

    High: 87 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the morning.

    High: 88 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Light south wind.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Light north wind.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming north northeast around 5 mph.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 87. Calm wind.
Tuesday Night
Mostly clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the morning.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Light south wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Light south southwest wind.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light south wind.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Light south wind.
Sunday
Mostly sunny, with a high near 91. South southwest wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Jacob IL
 37.78°N 89.51°W
Last Update:
11:26 pm CDT Aug 2, 2026
Forecast Valid:
11pm CDT Aug 2, 2026-6pm CDT Aug 9, 2026
 
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Additional Resources

Radar & Satellite Image

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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