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

68°F

20°C

Humidity 77%
Wind Speed S 9 mph
Barometer 30.01 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 6 Mar 9:15 pm CST
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a steady temperature around 68. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms, mainly before noon. High near 72. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.

    High: 72 °F

    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 42. West northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 42 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65. Light and variable wind.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly clear, with a low around 61. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. South southwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 58. South southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a steady temperature around 68. South wind 10 to 13 mph, with gusts as high as 23 mph.
Saturday
Showers and thunderstorms, mainly before noon. High near 72. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 42. West northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 65. Light and variable wind.
Sunday Night
Clear, with a low around 46. Calm wind becoming south southwest around 5 mph after midnight.
Monday
Sunny, with a high near 74. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly clear, with a low around 61. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. South southwest wind 7 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 58. South southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Wednesday
Showers and possibly a thunderstorm before noon, then showers likely. Cloudy, with a high near 68. Southwest wind 11 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 38. North wind 7 to 10 mph.
Thursday
Partly sunny, with a high near 56. North northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 38. Light and variable wind becoming south 5 to 7 mph in the evening.
Friday
Sunny, with a high near 64. South southwest wind 7 to 13 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
8:32 pm CST Mar 6, 2026
Forecast Valid:
9pm CST Mar 6, 2026-6pm CDT Mar 13, 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