Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Rain
45°F
7°C
| Humidity | 93% |
| Wind Speed | SW 7 mph |
| Barometer | 29.74 in |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 14 Jan 3:55 am CST |
Extended Forecast for
Harrisburg IL
Overnight
Low: 47 °F
Slight Chance
ShowersWednesday
High: 45 °F⇓
Slight Chance
Showers then
Partly Sunny
and BreezyWednesday Night
Low: 18 °F
Mostly Clear
Thursday
High: 33 °F
Sunny
Thursday Night
Low: 24 °F
Mostly Cloudy
Friday
High: 46 °F
Partly Sunny
Friday Night
Low: 22 °F
Mostly Cloudy
Saturday
High: 31 °F
Partly Sunny
Saturday Night
Low: 10 °F
Partly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of showers. Cloudy, with a steady temperature around 47. West southwest wind around 6 mph.
Wednesday
A 20 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 32 by 5pm. Breezy, with a north northwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 18. Northwest wind 7 to 16 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 33. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 24. Light south southwest wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 23 mph.
Friday
Partly sunny, with a high near 46. West wind 9 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 22. West northwest wind 7 to 10 mph.
Saturday
Partly sunny, with a high near 31. West wind 7 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 10. North northwest wind around 6 mph.
Sunday
Sunny, with a high near 26. Northwest wind 6 to 10 mph becoming west southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 15. Southwest wind 6 to 9 mph.
M.L.King Day
Mostly sunny, with a high near 33. West wind 7 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 12. West northwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 35. West wind 3 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.58°W
37.74°N 88.58°W
3:16 am CST Jan 14, 2026
4am CST Jan 14, 2026-6pm CST Jan 20, 2026
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