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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

51°F

11°C

Humidity 89%
Wind Speed Calm
Barometer 30.20 in (1022.7 mb)
Dewpoint 48°F (9°C)
Visibility 8.00 mi
Last update 19 Nov 6:52 pm CST
Extended Forecast for

5 Miles NNW Vergennes IL

  • Tonight

    Tonight: Patchy fog between 2am and 4am. Otherwise, cloudy, with a steady temperature around 50. Light and variable wind.

    Low: 50 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Showers likely, mainly between 9am and noon. Patchy fog before noon, then patchy fog after 4pm. Otherwise, cloudy, with a high near 58. Calm wind becoming south southeast 5 to 8 mph in the morning. Chance of precipitation is 70%.

    High: 58 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 9pm, then showers between 9pm and 3am, then showers and possibly a thunderstorm after 3am. Low around 54. Light east southeast wind. Chance of precipitation is 90%.

    Low: 54 °F

    Showers

  • Friday

    Friday: Showers. High near 66. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 47. North wind around 7 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 60. North northeast wind 3 to 7 mph.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Calm wind becoming west southwest around 6 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after midnight. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog between 2am and 4am. Otherwise, cloudy, with a steady temperature around 50. Light and variable wind.
Thursday
Showers likely, mainly between 9am and noon. Patchy fog before noon, then patchy fog after 4pm. Otherwise, cloudy, with a high near 58. Calm wind becoming south southeast 5 to 8 mph in the morning. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm before 9pm, then showers between 9pm and 3am, then showers and possibly a thunderstorm after 3am. Low around 54. Light east southeast wind. Chance of precipitation is 90%.
Friday
Showers. High near 66. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 47. North wind around 7 mph. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 60. North northeast wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 39. Calm wind.
Sunday
Mostly sunny, with a high near 62. Calm wind becoming west southwest around 6 mph.
Sunday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 44. Calm wind.
Monday
A chance of showers. Mostly cloudy, with a high near 61. Calm wind becoming southeast 5 to 7 mph in the morning.
Monday Night
A chance of showers. Mostly cloudy, with a low around 48. East southeast wind 5 to 7 mph.
Tuesday
A chance of showers. Mostly cloudy, with a high near 60. South southeast wind 7 to 9 mph becoming west northwest in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 40. West northwest wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 52. Northwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Vergennes IL
 37.97°N 89.36°W
Last Update:
7:06 pm CST Nov 19, 2025
Forecast Valid:
7pm CST Nov 19, 2025-6pm CST Nov 26, 2025
 
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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