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

27°F

-3°C

Humidity 67%
Wind Speed NE 9 mph
Barometer 30.39 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 4 Feb 9:35 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Partly sunny, with a high near 31. North wind 7 to 11 mph.

    High: 31 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 13. North wind 5 to 7 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 35. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 35 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. South southwest wind around 6 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 49. West southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26. North northwest wind 3 to 6 mph.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 40. East northeast wind around 6 mph becoming calm in the afternoon.

    High: 40 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Calm wind becoming south around 6 mph after midnight.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. South wind 5 to 7 mph becoming north northwest in the afternoon.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 31. North wind 7 to 11 mph.
Tonight
Partly cloudy, with a low around 13. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 35. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. South southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 49. West southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 26. North northwest wind 3 to 6 mph.
Saturday
Sunny, with a high near 40. East northeast wind around 6 mph becoming calm in the afternoon.
Saturday Night
Partly cloudy, with a low around 27. Calm wind becoming south around 6 mph after midnight.
Sunday
Mostly sunny, with a high near 51. South wind 5 to 7 mph becoming north northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 28. Light north northeast wind.
Monday
Mostly sunny, with a high near 50. Light and variable wind.
Monday Night
Mostly cloudy, with a low around 36. Calm wind becoming south around 5 mph after midnight.
Tuesday
A slight chance of showers. Partly sunny, with a high near 58. South southwest wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
7:52 am CST Feb 4, 2026
Forecast Valid:
9am CST Feb 4, 2026-6pm CST Feb 10, 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