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.

Fair

24°F

-4°C

Humidity 62%
Wind Speed SE 10 mph
Barometer 30.29 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 8 Feb 4:55 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Partly sunny, with a high near 43. Southeast wind 5 to 7 mph.

    High: 43 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Light east wind.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 54. Calm wind.

    High: 54 °F

    Sunny

  • Monday Night

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

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. West wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 36. North wind 3 to 6 mph.

    Low: 36 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. North northeast wind 3 to 6 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. Light east northeast wind.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers. Mostly cloudy, with a high near 47. East wind 3 to 6 mph.

    High: 47 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 43. Southeast wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 28. Light east wind.
Monday
Sunny, with a high near 54. Calm wind.
Monday Night
Mostly clear, with a low around 38. Calm wind becoming south southwest around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 61. West wind 5 to 7 mph becoming light and variable in the afternoon.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 36. North wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 50. North northeast wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 32. Light east northeast wind.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 47. East wind 3 to 6 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 32. East northeast wind 3 to 5 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 49. East northeast wind 5 to 7 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 32. East wind around 6 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 50. Southeast wind 6 to 9 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:
4:37 am CST Feb 8, 2026
Forecast Valid:
5am CST Feb 8, 2026-6pm CST Feb 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation