Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fair
28°F
-2°C
| Humidity | 89% |
| Wind Speed | Calm |
| Barometer | 30.34 in |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 12 Feb 12:35 am CST |
Extended Forecast for
Harrisburg IL
Overnight

Low: 29 °F
Partly Cloudy
Thursday

High: 50 °F
Partly Sunny
Thursday Night

Low: 31 °F
Partly Cloudy
Friday

High: 56 °F
Sunny
Friday Night

Low: 36 °F
Mostly Cloudy
Saturday

High: 54 °F
Chance
ShowersSaturday Night

Low: 45 °F
Showers
LikelySunday
High: 55 °F
Chance
Showers then
Mostly SunnySunday Night

Low: 37 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 29. Calm wind.
Thursday
Partly sunny, with a high near 50. Calm wind becoming east around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 31. East southeast wind 3 to 5 mph.
Friday
Sunny, with a high near 56. Calm wind becoming south southeast around 5 mph.
Friday Night
Mostly cloudy, with a low around 36. Calm wind.
Saturday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 54. Calm wind becoming south southeast around 6 mph in the afternoon.
Saturday Night
Showers likely. Cloudy, with a low around 45. East wind around 7 mph. Chance of precipitation is 60%.
Sunday
A chance of showers before noon. Partly sunny, with a high near 55. North wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 37. North wind around 6 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 60. Calm wind becoming southeast 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 44. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 6 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 54. South southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of showers. Partly sunny, with a high near 67. South southwest wind 11 to 15 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.58°W
37.74°N 88.58°W
10:31 pm CST Feb 11, 2026
12am CST Feb 12, 2026-6pm CST Feb 18, 2026


