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

46°F

8°C

Humidity 55%
Wind Speed NE 8 mph
Barometer 30.40 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 7 Apr 7:55 am CDT
Extended Forecast for

Harrisburg IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 59. East northeast wind 8 to 10 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 38. East wind around 6 mph.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. East wind 5 to 9 mph becoming south in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. South wind 6 to 8 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. South wind around 6 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78. South southwest wind 6 to 9 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 59. East northeast wind 8 to 10 mph.
Tonight
Mostly clear, with a low around 38. East wind around 6 mph.
Wednesday
Mostly sunny, with a high near 74. East wind 5 to 9 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 76. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 53. South wind around 6 mph.
Friday
Mostly sunny, with a high near 78. South southwest wind 6 to 9 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Light and variable wind.
Saturday
Mostly sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 59. East southeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 84. South wind 6 to 14 mph, with gusts as high as 23 mph.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 9 to 13 mph, with gusts as high as 23 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. South southwest wind 14 to 18 mph, with gusts as high as 28 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 CDT Apr 7, 2026
Forecast Valid:
8am CDT Apr 7, 2026-6pm CDT Apr 13, 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