Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fair
21°F
-6°C
| Humidity | 80% |
| Wind Speed | Calm |
| Barometer | 30.41 in |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Last update | 23 Feb 10:15 pm CST |
Extended Forecast for
Harrisburg IL
Tonight

Low: 20 °F
Mostly Clear
Tuesday
High: 48 °F
Partly Sunny
then Mostly
Cloudy and
BreezyTuesday Night

Low: 40 °F
Mostly Cloudy
Wednesday

High: 57 °F
Partly Sunny
Wednesday Night
Low: 40 °F
Slight Chance
Showers then
Chance
ShowersThursday
High: 52 °F
Chance
Showers then
Mostly SunnyThursday Night

Low: 33 °F
Partly Cloudy
Friday

High: 60 °F
Sunny
Friday Night

Low: 39 °F
Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 20. Light south southwest wind.
Tuesday
Increasing clouds, with a high near 48. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Tuesday Night
Mostly cloudy, with a low around 40. Southwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Wednesday
Partly sunny, with a high near 57. West southwest wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 40. East wind 3 to 7 mph.
Thursday
A 50 percent chance of showers before noon. Partly sunny, with a high near 52. North wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 33. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 60. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
Clear, with a low around 39. South southwest wind around 6 mph.
Saturday
Sunny, with a high near 66. South southwest wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 36. South wind around 8 mph becoming north after midnight.
Sunday
A slight chance of showers. Partly sunny, with a high near 53. Northeast wind 7 to 10 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 37. East northeast wind 7 to 9 mph.
Monday
A chance of showers. Partly sunny, with a high near 55. Northeast wind 8 to 10 mph becoming west northwest in the morning. Winds could gust as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.58°W
37.74°N 88.58°W
9:42 pm CST Feb 23, 2026
10pm CST Feb 23, 2026-6pm CST Mar 2, 2026


