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

80°F

27°C

Humidity 66%
Wind Speed SW 7 mph
Barometer 29.85 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 18 Jun 8:15 pm CDT
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Some of the storms could be severe. Mostly cloudy, with a low around 69. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Severe
    Thunderstorms

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 85. West wind around 7 mph.

    High: 85 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. South southwest wind 6 to 10 mph.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 75. South wind 5 to 7 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 3 to 6 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 74. South wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Some of the storms could be severe. Mostly cloudy, with a low around 69. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 85. West wind around 7 mph.
Thursday Night
Mostly clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. South wind around 6 mph.
Saturday
Sunny, with a high near 92. South southwest wind 6 to 10 mph.
Saturday Night
Clear, with a low around 75. South wind 5 to 7 mph.
Sunday
Sunny, with a high near 93. South southwest wind 3 to 6 mph.
Sunday Night
Clear, with a low around 74. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 94. Light south southwest wind.
Monday Night
Mostly clear, with a low around 75. Calm wind.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind.
Tuesday Night
Mostly clear, with a low around 75. Calm wind.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 93. Light south southwest wind.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.52°W
Last Update:
8:00 pm CDT Jun 18, 2025
Forecast Valid:
8pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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