National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

63°F

17°C

Humidity 82%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 8 Oct 8:35 am CDT
Extended Forecast for

Harrisburg IL

  • Today

    Today: Sunny, with a high near 84. Calm wind becoming east around 6 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 54. Calm wind.

    Low: 54 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Light south southeast wind.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers after 1pm. Partly sunny, with a high near 79. Calm wind becoming east 5 to 9 mph in the morning.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers after 1am. Low around 58. East wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely before 1pm. Partly sunny, with a high near 72. East northeast wind around 10 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Light southwest wind.

    Low: 57 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Calm wind becoming east around 6 mph.
Tonight
Clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 87. Calm wind becoming south southeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 60. Light south southeast wind.
Saturday
A 50 percent chance of showers after 1pm. Partly sunny, with a high near 79. Calm wind becoming east 5 to 9 mph in the morning.
Saturday Night
Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers after 1am. Low around 58. East wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Sunday
Showers likely before 1pm. Partly sunny, with a high near 72. East northeast wind around 10 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 57. Light southwest wind.
Columbus Day
Sunny, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 61. South southwest wind around 7 mph.
Tuesday
A slight chance of showers. Sunny, with a high near 79. Northwest wind 8 to 11 mph.
Tuesday Night
A slight chance of showers. Mostly clear, with a low around 52. North wind 3 to 7 mph.
Wednesday
Sunny, with a high near 74. East northeast wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.72°N 88.55°W
Last Update:
5:21 am CDT Oct 8, 2026
Forecast Valid:
8am CDT Oct 8, 2026-6pm CDT Oct 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