Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Overcast
28°F
-2°C
| Humidity | 49% |
| Wind Speed | NW 10 G 18 mph |
| Barometer | 30.10 in |
| Dewpoint | 11°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 19°F (-7°C) |
| Last update | 14 Jan 11:15 pm CST |
Extended Forecast for
Harrisburg IL
Tonight

Low: 19 °F
Mostly Clear
Thursday

High: 33 °F
Sunny
Thursday Night

Low: 26 °F⇑
Chance Snow
Friday

High: 45 °F
Mostly Cloudy
Friday Night

Low: 23 °F
Mostly Cloudy
Saturday

High: 30 °F
Partly Sunny
Saturday Night

Low: 10 °F
Partly Cloudy
Sunday

High: 25 °F
Mostly Sunny
Sunday Night

Low: 15 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 19. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 33. Northwest wind 5 to 8 mph becoming light and variable in the afternoon.
Thursday Night
A chance of snow between 9pm and 3am. Mostly cloudy, with a temperature falling to near 26 by 10pm, then rising to around 34 during the remainder of the night. Light south wind becoming southwest 6 to 11 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 45. West wind 8 to 13 mph, with gusts as high as 22 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 30. West wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 10. Northwest wind around 7 mph.
Sunday
Mostly sunny, with a high near 25. West northwest wind 6 to 10 mph becoming 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 30. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 10. Northwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 31. Light and variable wind becoming west 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 19. South southwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 41. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.55°W
37.74°N 88.55°W
10:26 pm CST Jan 14, 2026
11pm CST Jan 14, 2026-6pm CST Jan 21, 2026


