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.

Overcast

28°F

-2°C

Humidity 65%
Wind Speed SW 5 mph
Barometer 30.22 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 2 Feb 4:55 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Partly sunny, with a high near 39. Southwest wind 3 to 6 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. Light east southeast wind.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow between 8am and 9am, then a chance of rain. Cloudy, with a high near 39. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21. North wind around 6 mph.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 31. North northwest wind 3 to 6 mph.

    High: 31 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 36. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. South southwest wind 6 to 9 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46. West southwest wind 7 to 10 mph becoming north northwest in the afternoon.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 39. Southwest wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 24. Light east southeast wind.
Tuesday
A slight chance of snow between 8am and 9am, then a chance of rain. Cloudy, with a high near 39. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 21. North wind around 6 mph.
Wednesday
Partly sunny, with a high near 31. North northwest wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 14. Calm wind.
Thursday
Mostly sunny, with a high near 36. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 28. South southwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 46. West southwest wind 7 to 10 mph becoming north northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 22. North northwest wind around 6 mph.
Saturday
Sunny, with a high near 37. North northeast wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 22. Light and variable wind becoming southeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 42. Southeast 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:
3:22 am CST Feb 2, 2026
Forecast Valid:
5am CST Feb 2, 2026-6pm CST Feb 8, 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