Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fair
38°F
3°C
| Humidity | 65% |
| Wind Speed | SW 8 mph |
| Barometer | 30.08 in |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 13 Jan 4:15 am CST |
Extended Forecast for
Harrisburg IL
Today
High: 58 °F
Mostly Sunny
Tonight
Low: 41 °F
Chance
ShowersWednesday
High: 46 °F⇓
Slight Chance
Showers then
Partly SunnyWednesday Night
Low: 18 °F
Mostly Clear
Thursday
High: 31 °F
Sunny
Thursday Night
Low: 23 °F
Mostly Cloudy
Friday
High: 45 °F
Partly Sunny
Friday Night
Low: 22 °F
Mostly Cloudy
Saturday
High: 33 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 58. Southwest wind 10 to 17 mph, with gusts as high as 30 mph.
Tonight
A 40 percent chance of showers, mainly between 10pm and 3am. Cloudy, with a low around 41. Southwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.
Wednesday
A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 5pm. North northwest wind 6 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 18. North northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 31. North northwest wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 23. Light south southwest wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 23 mph.
Friday
Partly sunny, with a high near 45. West wind 10 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 22. West wind 6 to 9 mph.
Saturday
Partly sunny, with a high near 33. West wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 12. West northwest wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 28. West northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 12. West wind around 7 mph.
M.L.King Day
Sunny, with a high near 35. West southwest wind 6 to 10 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
3:16 am CST Jan 13, 2026
4am CST Jan 13, 2026-6pm CST Jan 19, 2026
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