Weather WorldHarrison Primary School, IL Weather Forecast
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Harrison Primary School Weather Forecast
| THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  | |  | | |  |  | | |  |
| Mostly Sunny | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Partly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Showers | Chance of T-Storm | Showers | Chance of Showers |
| Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C |
| POP: 40% | POP: 70% | POP: 90% | POP: 70% | POP: 70% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 PM CDT Sat Sep 12 2026 
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Issued: 1202 PM CDT Sat Sep 12 2026
Key Messages
- A stalling cold front creates a sharp temperature split Sunday, with highs ranging from the upper 70s northwest of the Illinois River to near 90 south of I-70. Scattered showers (20-40% chance) will be near the front.
- Multiple rounds of thunderstorms track along a stalled front Tuesday and Wednesday, especially north of I-72. There will be a low risk for strong to severe storms and locally heavy rain.
- Periodic thunderstorm chances persist Thursday and Friday along the lingering front...