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

46°F

8°C

Humidity 57%
Wind Speed NW 14 G 20 mph
Barometer 29.89 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 6 Feb 12:35 pm CST
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: Increasing clouds, with a temperature falling to around 43 by 5pm. North northwest wind 11 to 17 mph, with gusts as high as 30 mph.

    High: 48 °F⇓

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 22. North northwest wind around 8 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 34. North northeast wind around 6 mph becoming calm in the afternoon.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 23. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 23 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 48. South southwest wind 3 to 7 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57. Light southwest wind.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, mainly after noon. Mostly cloudy, with a high near 64. South southwest wind 6 to 8 mph.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Increasing clouds, with a temperature falling to around 43 by 5pm. North northwest wind 11 to 17 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 22. North northwest wind around 8 mph.
Saturday
Sunny, with a high near 34. North northeast wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 23. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 48. South southwest wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 31. Calm wind.
Monday
Sunny, with a high near 57. Light southwest wind.
Monday Night
Partly cloudy, with a low around 41. Calm wind becoming south southwest around 6 mph after midnight.
Tuesday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 64. South southwest wind 6 to 8 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 42. Southwest wind around 7 mph becoming west northwest after midnight.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 53. North northwest wind 6 to 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 32. North wind around 5 mph.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 46. North wind around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
10:46 am CST Feb 6, 2026
Forecast Valid:
12pm CST Feb 6, 2026-6pm CST Feb 12, 2026
 
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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