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Hornsby, IL 7-Day Weather Forecast
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Hornsby Weather Forecast
Hornsby, IL Weather Forecast Date: 1048 PM CDT Wed Sep 16 2026
Weather forecast for Hornsby, IL
Tonight Lo: 71°F Lo: 22°C |
Tonight... Partly cloudy late this evening, then clearing. Lows in the lower 70s. East winds around 5 mph, becoming south. |
Thu Hi: 95°FHi: 35°C Lo: 70°F Lo: 21°C |
Thursday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming west in the afternoon. Chance of rain 20%. Heat index values up to 105. |
Fri Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Friday... Sunny. Highs in the lower 90s. East winds around 5 mph, becoming south in the afternoon. Heat index values up to 100. |
| Sat Hi: 95°FHi: 35°C Lo: 70°F Lo: 21°C |
Saturday... Mostly sunny. Hot with highs in the mid 90s. |
| Sun Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Sunday... Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50%. |
| Mon Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Monday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Highs in the mid 80s. Chance of rain 40%. |
Tue Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Tuesday... Partly cloudy with a 20% chance of showers. Highs in the lower 80s. Lows in the upper 50s. |
| Wed Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Wednesday... Partly cloudy with a 20% chance of showers. Highs in the lower 80s. Lows in the upper 50s. |
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