Hazardous Weather Conditions
Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fair
60°F
16°C
| Humidity | 52% |
| Wind Speed | SW 9 mph |
| Barometer | 30.04 in |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 27 Feb 10:15 am CST |
Extended Forecast for
Harrisburg IL
Today

High: 69 °F
Sunny
Tonight

Low: 41 °F
Mostly Clear
Saturday

High: 69 °F
Mostly Sunny
Saturday Night

Low: 39 °F
Partly Cloudy
Sunday

High: 50 °F
Mostly Cloudy
Sunday Night

Low: 35 °F
Showers
LikelyMonday
High: 47 °F
Chance
Showers then
Mostly CloudyMonday Night

Low: 40 °F
Chance
ShowersTuesday

High: 65 °F
Showers
Likely
Detailed Forecast
Today
Sunny, with a high near 69. Southwest wind 6 to 10 mph.
Tonight
Mostly clear, with a low around 41. South southwest wind 5 to 7 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 69. Light and variable wind becoming south southeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 39. South southwest wind 6 to 9 mph becoming north after midnight.
Sunday
Mostly cloudy, with a high near 50. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Showers likely, mainly after midnight. Cloudy, with a low around 35. East northeast wind around 8 mph. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers before noon. Cloudy, with a high near 47. East wind 6 to 9 mph.
Monday Night
A chance of showers. Cloudy, with a low around 40. East wind 5 to 7 mph becoming south after midnight.
Tuesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 65. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. South wind 6 to 8 mph.
Wednesday
Showers likely. Cloudy, with a high near 65. South wind 8 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 68. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.55°W
37.74°N 88.55°W
9:42 am CST Feb 27, 2026
10am CST Feb 27, 2026-6pm CST Mar 5, 2026



