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.

Overcast and Breezy

32°F

0°C

Humidity 65%
Wind Speed W 22 G 30 mph
Barometer 29.80 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 16 Mar 6:15 am CDT
Extended Forecast for

Harrisburg IL

  • Today

    Today: Mostly cloudy, with a steady temperature around 31. Blustery, with a west northwest wind 20 to 22 mph, with gusts as high as 33 mph.

    High: 31 °F

    Mostly Cloudy
    and Blustery

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 18. West northwest wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 18 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 38. Northwest wind 5 to 9 mph.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers after 1am. Mostly cloudy, with a low around 30. Light south southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. South wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. South southwest wind around 6 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 71. South southwest wind around 7 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Light west northwest wind.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 73. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a steady temperature around 31. Blustery, with a west northwest wind 20 to 22 mph, with gusts as high as 33 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 18. West northwest wind 10 to 15 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 38. Northwest wind 5 to 9 mph.
Tuesday Night
A 30 percent chance of snow showers after 1am. Mostly cloudy, with a low around 30. Light south southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 60. South wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 43. South southwest wind around 6 mph.
Thursday
Sunny, with a high near 71. South southwest wind around 7 mph.
Thursday Night
Mostly clear, with a low around 46. Light west northwest wind.
Friday
Mostly sunny, with a high near 73. Light and variable wind becoming southwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 53. South southwest wind around 6 mph.
Saturday
Sunny, with a high near 78. Southwest wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 52. West southwest wind around 7 mph.
Sunday
Sunny, with a high near 74. South southwest wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
6:56 am CDT Mar 16, 2026
Forecast Valid:
7am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation