National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 15 Oct 12:15 am CDT
Extended Forecast for

Muddy 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: 69 °F

    Chance
    T-storms and
    Patchy Dense
    Fog

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Areas of dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 88 °F

    Chance
    T-storms and
    Areas Dense
    Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am. Increasing clouds, with a low around 52. South southwest wind 9 to 16 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • 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 16 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 42. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear

  • Sunday

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

    High: 68 °F

    Sunny

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy dense fog. Otherwise, mostly cloudy, with a steady temperature around 69. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms. Areas of dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am. Increasing clouds, with a low around 52. South southwest wind 9 to 16 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
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 16 to 20 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 42. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 61. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 36. Calm wind.
Sunday
Sunny, with a high near 68. Calm wind becoming south southeast around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 41. Calm wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south around 5 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 48. Calm wind.
Wednesday
Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Muddy IL
 37.76°N 88.52°W
Last Update:
12:26 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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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation