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Thornton, IL 7-Day Weather Forecast
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Thornton Weather Forecast
Thornton, IL Weather Forecast Date: 451 AM CDT Wed Sep 09 2026
Weather forecast for Thornton, IL
Morning Hi: 71°FHi: 22°C |
Early This Morning... Mostly cloudy. A slight chance of showers late, then a chance of showers late. Temperatures in the lower 70s. Southwest winds around 5 mph. Chance of precipitation 50%. |
Today Hi: 79°FHi: 26°C Lo: 65°F Lo: 18°C |
Today... Cloudy. Showers in the morning, then a slight chance of showers early in the afternoon. Humid. Highs in the upper 70s. West winds 5 to 10 mph. Chance of precipitation 90%. |
Thu Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Thursday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 70s. North winds around 5 mph. |
Fri Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Friday... Sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph. |
Sat Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Saturday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 40%. |
| Sun Hi: 81°FHi: 27°C Lo: 69°F Lo: 21°C |
Sunday... Mostly cloudy. A chance of showers in the afternoon. Highs in the lower 80s. Chance of precipitation 30%. |
| Mon Hi: 89°FHi: 32°C Lo: 70°F Lo: 21°C |
Monday... Mostly cloudy with a chance of showers. Highs in the upper 80s. Chance of precipitation 40%. |
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