Thornton High School, IL Weather Forecast
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Thornton High School Weather Forecast
| REST OF TODAY | TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Sunny | Mostly Cloudy | Partly Cloudy | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of Showers | Chance of Showers | Showers | Chance of Showers | Chance of Showers | Mostly Cloudy |
| Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 70°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C |
| POP: 50% | POP: 40% | POP: 30% | POP: 60% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1031 AM CDT Sun Oct 11 2026 

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Issued: 1202 PM CDT Sun Oct 11 2026
Key Messages
- Near record high temps possible and gusty southwest winds Monday.
- Active pattern next week with a series of precipitation chances, and then turning colder into next weekend.
Discussion
... Issued at 200 AM CDT Sun Oct 11 2026
A weak ridge of high pressure will slowly drift east of the area this afternoon into this evening. This will allow for light winds this morning to slowly become south/southwest through the day. High/mid clouds early will depart this morning leaving mostly sunny ski...
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