Hazardous Weather Conditions
Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fog/Mist
69°F
21°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.07 in |
| Dewpoint | 69°F (21°C) |
| Visibility | 2.50 mi |
| Last update | 15 Oct 3:55 am CDT |
Extended Forecast for
Harrisburg IL
Dense Fog Advisory until October 15, 08:00am
NOW until 8:00am Thu
Dense Fog Advisory
Overnight
Low: 67 °F
Chance
T-storms and
Areas Dense
FogThursday
High: 88 °F
Showers
Likely and
Areas Dense
Fog then
Chance
T-stormsThursday Night
Low: 51 °F
Chance
ShowersFriday
High: 59 °F
Chance
Showers then
Partly Sunny
and BreezyFriday Night
Low: 41 °F
Mostly Cloudy
Saturday
High: 60 °F
Sunny
Saturday Night
Low: 35 °F
Clear
Sunday
High: 66 °F
Sunny
Detailed Forecast
Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Areas of dense fog. Otherwise, mostly cloudy, with a low around 67. Calm wind.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 9am, then a chance of showers and thunderstorms after 9am. Areas of dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 5am. Increasing clouds, with a low around 51. South southwest wind 8 to 15 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 41. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 60. North northeast wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Clear, with a low around 35. Calm wind.
Sunday
Sunny, with a high near 66. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 70. Calm wind becoming south around 5 mph.
Monday Night
Partly cloudy, with a low around 43. Calm wind.
Tuesday
Mostly sunny, with a high near 72. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 45. Calm wind.
Wednesday
Sunny, with a high near 76. Light and variable wind.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.72°N 88.55°W
37.72°N 88.55°W
1:26 am CDT Oct 15, 2026
4am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
