Hazardous Weather Conditions
Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Overcast
74°F
23°C
| Humidity | 100% |
| Wind Speed | W 5 mph |
| Barometer | 30.01 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 17 Aug 7:55 am CDT |
Extended Forecast for
Harrisburg IL
Today
High: 88 °F
Mostly Sunny
Tonight
Low: 64 °F
Partly Cloudy
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 91 °F
Showers
LikelyWednesday Night
Low: 68 °F
Chance
T-storms then
Showers
LikelyThursday
High: 85 °F
Showers
LikelyThursday Night
Low: 65 °F
Chance
ShowersFriday
High: 85 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 88. Northwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 64. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Partly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Calm wind becoming north northeast around 6 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65. Light north northeast wind.
Friday
Mostly sunny, with a high near 85. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 63. Light north wind.
Saturday
Sunny, with a high near 87. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. Calm wind.
Sunday
Sunny, with a high near 86. Calm wind becoming north northwest around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.55°W
37.74°N 88.55°W
6:46 am CDT Aug 17, 2026
8am CDT Aug 17, 2026-6pm CDT Aug 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
