Current conditions at
Harrisburg-Raleigh Airport (KHSB)
Lat: 37.81°NLon: 88.54°WElev: 387ft.
Fair
82°F
28°C
| Humidity | 42% |
| Wind Speed | SW 3 mph |
| Barometer | 29.98 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 11 Oct 5:15 pm CDT |
Extended Forecast for
Harrisburg IL
Tonight
Low: 60 °F
Mostly Clear
Columbus Day
High: 90 °F
Sunny
Monday Night
Low: 65 °F
Clear
Tuesday
High: 91 °F
Becoming
SunnyTuesday Night
Low: 70 °F
Mostly Clear
Wednesday
High: 87 °F
Chance
T-storms then
Showers
LikelyWednesday Night
Low: 65 °F
Showers
LikelyThursday
High: 82 °F
Showers
LikelyThursday Night
Low: 57 °F
Chance
Showers then
Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 60. Light and variable wind.
Columbus Day
Sunny, with a high near 90. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Clear, with a low around 65. Southwest wind around 7 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 91. Southwest wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 70. South southwest wind around 5 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Southwest wind 3 to 7 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Calm wind becoming south southeast 5 to 9 mph in the morning.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind 5 to 10 mph becoming west after midnight.
Friday
Partly sunny, with a high near 69. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 40. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 60. North wind 10 to 14 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 35. North wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 67. Calm wind becoming south southeast around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Harrisburg IL
37.74°N 88.55°W
37.74°N 88.55°W
2:01 pm CDT Oct 11, 2026
5pm CDT Oct 11, 2026-6pm CDT Oct 18, 2026
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