Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fair with Haze
49°F
9°C
| Humidity | 54% |
| Wind Speed | E 3 mph |
| Barometer | 30.18 in |
| Dewpoint | 33°F (1°C) |
| Visibility | 4.00 mi |
| Last update | 25 Mar 12:35 am CDT |
Extended Forecast for
Harrisburg IL
Overnight
Low: 44 °F
Partly Cloudy
Wednesday
High: 75 °F
Mostly Sunny
Wednesday Night
Low: 61 °F
Mostly Clear
Thursday
High: 86 °F
Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
then Chance
T-stormsFriday
High: 55 °F
Showers
LikelyFriday Night
Low: 32 °F
Mostly Clear
Saturday
High: 58 °F
Sunny
Saturday Night
Low: 38 °F
Partly Cloudy
Detailed Forecast
Overnight
Partly cloudy, with a low around 44. Calm wind.
Wednesday
Mostly sunny, with a high near 75. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 61. South wind 6 to 11 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 86. South southwest wind 13 to 16 mph, with gusts as high as 26 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 46. South southwest wind around 14 mph becoming north northwest after midnight. Winds could gust as high as 23 mph.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 55. North wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday Night
Mostly clear, with a low around 32. North northeast wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 58. East wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 38. Calm wind.
Sunday
Mostly sunny, with a high near 66. South wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 52. South wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 77. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 58. South wind around 9 mph, with gusts as high as 18 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.55°W
37.74°N 88.55°W
12:36 am CDT Mar 25, 2026
12am CDT Mar 25, 2026-6pm CDT Mar 31, 2026
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