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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 14 Oct 11:55 pm CDT
Extended Forecast for

Colp IL

Dense Fog Advisory until October 15, 08:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until October 15, 08:00am

    NOW until 8:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 70 °F

    Slight Chance
    T-storms and
    Patchy Dense
    Fog

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Patchy dense fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 87 °F

    Chance
    T-storms and
    Patchy Dense
    Fog

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Increasing clouds, with a low around 50. South southwest wind 8 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 28 mph.

    High: 59 °F

    Breezy.
    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. North northwest wind 10 to 15 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62. North northeast wind 7 to 10 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Calm wind becoming south southeast around 6 mph in the morning.

    High: 68 °F

    Sunny

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 1am. Patchy dense fog after 1am. Otherwise, mostly cloudy, with a steady temperature around 70. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms. Patchy dense fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Increasing clouds, with a low around 50. South southwest wind 8 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 41. North northwest wind 10 to 15 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 62. North northeast wind 7 to 10 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 68. Calm wind becoming south southeast around 6 mph in the morning.
Sunday Night
Mostly clear, with a low around 42. Calm wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 46. Calm wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Colp IL
 37.81°N 89.08°W
Last Update:
12:01 am CDT Oct 15, 2026
Forecast Valid:
12am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation