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

43°F

6°C

Humidity 73%
Wind Speed E 10 mph
Barometer 29.92 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 26 Feb 8:35 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Sunny, with a high near 56. East wind 3 to 7 mph.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 67. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 43. South southwest wind around 6 mph becoming light and variable after midnight.

    Low: 43 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 67. Light and variable wind becoming south 5 to 8 mph in the morning.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly clear, with a low around 36. South southwest wind 6 to 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.

    Low: 36 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of rain showers before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    High: 46 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow showers likely before midnight, then rain showers, snow showers, and freezing rain likely. Cloudy, with a low around 32. Northeast wind around 10 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Wintry Mix
    Likely

  • Monday

    Monday: A chance of rain and snow showers before noon, then a slight chance of rain showers. Cloudy, with a high near 44. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 44 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 56. East wind 3 to 7 mph.
Tonight
Clear, with a low around 35. Calm wind.
Friday
Sunny, with a high near 67. Calm wind becoming southwest 5 to 9 mph in the morning.
Friday Night
Clear, with a low around 43. South southwest wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 67. Light and variable wind becoming south 5 to 8 mph in the morning.
Saturday Night
A 20 percent chance of showers. Mostly clear, with a low around 36. South southwest wind 6 to 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Sunday
A slight chance of rain showers before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Sunday Night
Rain and snow showers likely before midnight, then rain showers, snow showers, and freezing rain likely. Cloudy, with a low around 32. Northeast wind around 10 mph, with gusts as high as 18 mph.
Monday
A chance of rain and snow showers before noon, then a slight chance of rain showers. Cloudy, with a high near 44. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 31. East northeast wind around 6 mph.
Tuesday
A chance of showers. Cloudy, with a high near 49. East northeast wind 6 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
A chance of showers. Cloudy, with a low around 36. North northwest wind around 6 mph becoming northeast after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 55. Northeast wind around 7 mph becoming east southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
8:41 am CST Feb 26, 2026
Forecast Valid:
8am CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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