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

71°F

22°C

Humidity 68%
Wind Speed S 15 G 23 mph
Barometer 29.93 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 2 Apr 8:55 pm CDT
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 65. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 83. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 72. South southwest wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%.

    High: 72 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 41. West northwest wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 60. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38. Northwest wind around 6 mph becoming calm in the evening.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the morning.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Calm wind becoming north around 6 mph after midnight.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 65. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 83. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 72. South southwest wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Saturday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Partly cloudy, with a low around 41. West northwest wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 60. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 38. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 38. Calm wind becoming north around 6 mph after midnight.
Tuesday
Sunny, with a high near 57. North northeast wind around 8 mph.
Tuesday Night
Mostly clear, with a low around 36. East southeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 68. South wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 50. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 75. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.
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 88.55°W
Last Update:
6:46 pm CDT Apr 2, 2026
Forecast Valid:
9pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026
 
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