Hazardous Weather Conditions
Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Overcast
29°F
-2°C
| Humidity | 45% |
| Wind Speed | SW 9 G 16 mph |
| Barometer | 30.07 in |
| Dewpoint | 10°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 21°F (-6°C) |
| Last update | 18 Jan 9:35 pm CST |
Extended Forecast for
Harrisburg IL
Tonight
Low: 16 °F
Mostly Cloudy
M.L.King Day
High: 20 °F
Sunny
Monday Night
Low: 11 °F
Mostly Clear
Tuesday
High: 36 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 45 °F
Slight Chance
Rain/Snow
then Slight
Chance
ShowersWednesday Night
Low: 23 °F
Partly Cloudy
Thursday
High: 37 °F
Sunny
Thursday Night
Low: 22 °F
Partly Cloudy
Detailed Forecast
Tonight
Clear early, then becoming mostly cloudy, with a low around 16. Southwest wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 25 mph.
M.L.King Day
Sunny, with a steady temperature around 20. West northwest wind 7 to 17 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 11. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 36. Calm wind becoming south southwest 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 26. South wind 6 to 13 mph, with gusts as high as 22 mph.
Wednesday
A slight chance of rain and snow showers before noon, then a slight chance of rain showers. Partly sunny, with a high near 45. Southwest wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 23. Southwest wind around 6 mph becoming west northwest after midnight.
Thursday
Sunny, with a high near 37. West northwest wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 22. Calm wind becoming south southwest around 6 mph after midnight.
Friday
Partly sunny, with a high near 41. South southwest wind 6 to 8 mph becoming north northeast in the afternoon.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 21. North northeast wind 6 to 9 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 30. North northeast wind around 11 mph, with gusts as high as 18 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 10. North wind around 9 mph.
Sunday
A slight chance of freezing rain. Mostly sunny, with a high near 23. North wind 7 to 9 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
9:32 pm CST Jan 18, 2026
9pm CST Jan 18, 2026-6pm CST Jan 25, 2026
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