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Lyon Elementary School, IL Weather Forecast
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Lyon Elementary School Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 | | |  |  |  |  | | | | | |
| Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 61°FHi: 16°C | Lo: 59°FLo: 15°C | Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C |
| POP: 100% | POP: 60% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 251 PM CDT Sun Sep 20 2026 
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Issued: 1231 PM CDT Sun Sep 20 2026
Key Messages
- Widespread showers will gradually diminish in coverage late this afternoon. Pockets of light showers/drizzle may continue at times tonight into Monday morning.
- Below normal temperatures through the end of the week.
Discussion
... Issued at 1230 PM CDT Sun Sep 20 2026
A mid-level shortwave/convectively augmented MCV continues to shift east directly overhead early this afternoon. At the surface, a synoptic cold front is pushing southward, with gusty northeasterly winds developing in its w...