Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
81°F
27°C
| Humidity | 66% |
| Wind Speed | S 8 mph |
| Barometer | 29.91 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 13 Oct 9:50 pm CDT |
Extended Forecast for
Hillsboro IL
Tonight
Low: 69 °F
Clear then
Chance
T-stormsWednesday
High: 77 °F
T-storms then
Chance
T-stormsWednesday Night
Low: 63 °F
Slight Chance
T-storms then
Showers
LikelyThursday

High: 80 °F
Showers
Thursday Night
Low: 46 °F
Chance
T-storms then
Chance
ShowersFriday

High: 60 °F
Mostly Sunny
and BreezyFriday Night

Low: 33 °F
Mostly Clear
Saturday

High: 62 °F
Sunny
Saturday Night

Low: 35 °F
Clear
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 69. South wind 5 to 7 mph becoming west after midnight.
Wednesday
Showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and noon, then a chance of showers and thunderstorms after noon. High near 77. North wind 3 to 6 mph. Chance of precipitation is 80%.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 63. East wind 7 to 9 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 80. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 100%.
Thursday Night
A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 46. West wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Friday
Mostly sunny, with a high near 60. Breezy.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Hillsboro IL
39.17°N 89.49°W (Elev. 581 ft)
39.17°N 89.49°W (Elev. 581 ft)
9:06 pm CDT Oct 13, 2026
10pm CDT Oct 13, 2026-6pm CDT Oct 20, 2026


