Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Partly Cloudy
37°F
3°C
| Humidity | 87% |
| Wind Speed | S 6 mph |
| Barometer | 30.01 in |
| Dewpoint | 33°F (1°C) |
| Visibility | 7.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 6 Dec 10:15 pm CST |
Extended Forecast for
Harrisburg IL
Tonight
Low: 34 °F
Cloudy then
Slight Chance
Drizzle and
Patchy FogSunday

High: 45 °F
Slight Chance
DrizzleSunday Night

Low: 25 °F
Mostly Cloudy
Monday

High: 37 °F
Decreasing
CloudsMonday Night

Low: 24 °F
Mostly Clear
Tuesday

High: 48 °F
Mostly Sunny
Tuesday Night

Low: 40 °F
Mostly Cloudy
Wednesday
High: 52 °F
Partly Sunny
then Slight
Chance
ShowersWednesday Night
Low: 29 °F
Slight Chance
Showers then
Slight Chance
Rain/Snow
Detailed Forecast
Tonight
A slight chance of drizzle after 4am. Patchy fog between 3am and 4am. Otherwise, cloudy, with a low around 34. Calm wind.
Sunday
A slight chance of drizzle. Cloudy, with a high near 45. Light and variable wind becoming north northwest 5 to 10 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 25. North wind 6 to 10 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 37. North wind around 6 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 24. Calm wind becoming south southwest 5 to 9 mph after midnight.
Tuesday
Mostly sunny, with a high near 48. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 40. South southwest wind 14 to 16 mph, with gusts as high as 28 mph.
Wednesday
A slight chance of showers after noon. Partly sunny, with a high near 52. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
A slight chance of rain showers before midnight, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 29. Northwest wind around 6 mph becoming light and variable.
Thursday
A chance of rain and snow showers before noon, then a slight chance of rain showers. Mostly cloudy, with a high near 41. East wind 6 to 9 mph becoming west in the afternoon.
Thursday Night
Mostly cloudy, with a low around 23. West northwest wind around 7 mph.
Friday
Partly sunny, with a high near 32. Northwest wind 7 to 11 mph.
Friday Night
Partly cloudy, with a low around 10. Northwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 29. Northwest wind 6 to 9 mph.
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ABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.55°W
37.74°N 88.55°W
5:11 pm CST Dec 6, 2025
10pm CST Dec 6, 2025-6pm CST Dec 13, 2025


