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

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Partly Cloudy

30°F

-1°C

Humidity 60%
Wind Speed S 12 mph
Barometer 29.99 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 5 Feb 4:55 pm CST
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: Partly cloudy, with a low around 26. South southwest wind around 6 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 47. West southwest wind 6 to 11 mph becoming northwest 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 47 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 23. North northwest wind 7 to 9 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 33. North northeast wind 5 to 7 mph becoming calm in the afternoon.

    High: 33 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48. South wind 5 to 7 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. Light and variable wind.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Calm wind becoming south around 6 mph after midnight.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. South southwest wind around 6 mph.
Friday
Increasing clouds, with a high near 47. West southwest wind 6 to 11 mph becoming northwest 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 23. North northwest wind 7 to 9 mph.
Saturday
Sunny, with a high near 33. North northeast wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Partly cloudy, with a low around 22. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 48. South wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 29. Light and variable wind.
Monday
Sunny, with a high near 55. Light and variable wind.
Monday Night
Mostly clear, with a low around 38. Calm wind becoming south around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 63. South southwest wind 6 to 8 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 46. Southwest wind around 7 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 57. West southwest wind 6 to 8 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 38. West southwest wind around 6 mph.
Thursday
A chance of showers. Mostly cloudy, with a high near 51. West northwest wind 6 to 8 mph becoming east in the afternoon.
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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:
3:22 pm CST Feb 5, 2026
Forecast Valid:
5pm CST Feb 5, 2026-6pm CST Feb 12, 2026
 
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Additional Resources

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Chance of Precipitation