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Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fog

36°F

2°C

Humidity 95%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 34°F (1°C)
Visibility 0.25 mi
Last update 15 Feb 10:35 pm CST
Extended Forecast for

Harrisburg IL

Dense Fog Advisory February 15, 11:00pm until February 16, 09:00am
Click here for hazard details and duration
Dense Fog Advisory

  • Tonight

    Tonight: Widespread dense fog, mainly after 1am. Otherwise, increasing clouds, with a low around 34. Calm wind.

    Low: 34 °F

    Dense Fog

  • Washington's Birthday

    Washington's Birthday: Widespread dense fog before 9am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 62 °F

    Dense Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. South wind 3 to 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. South wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Breezy, with a south wind 14 to 21 mph, with gusts as high as 33 mph.

    Low: 58 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Southwest wind 10 to 18 mph, with gusts as high as 31 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. South southwest wind 5 to 9 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. South wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 45. West wind 7 to 10 mph.

    Low: 45 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Tonight
Widespread dense fog, mainly after 1am. Otherwise, increasing clouds, with a low around 34. Calm wind.
Washington's Birthday
Widespread dense fog before 9am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 42. South wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 6 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 58. Breezy, with a south wind 14 to 21 mph, with gusts as high as 33 mph.
Wednesday
Mostly sunny, with a high near 72. Southwest wind 10 to 18 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 53. South southwest wind 5 to 9 mph.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. South wind 5 to 13 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 45. West wind 7 to 10 mph.
Friday
A chance of showers, mainly after noon. Partly sunny, with a high near 57. West northwest wind 7 to 9 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 36. North wind around 6 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 51. North northwest wind 5 to 8 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 30. North northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 47. Northwest wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
8:42 pm CST Feb 15, 2026
Forecast Valid:
10pm CST Feb 15, 2026-6pm CST Feb 22, 2026
 
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Additional Resources

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Chance of Precipitation