Shirley, IL Weather Forecast
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Shirley Weather Forecast
| THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Sunny | Showers |
| Hi: 70°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Hi: 70°FHi: 21°C Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C Lo: 55°FLo: 13°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Hi: 71°FHi: 22°C Lo: 65°FLo: 18°C |
| POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 257 PM CDT Thu Sep 24 2026 

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Issued: 115 PM CDT Thu Sep 24 2026
Key Messages
- Mostly cloudy and cool weather will prevail the next several days before a pattern change brings unsettled conditions, including the potential for thunderstorms, by the middle of next week.
Discussion
... Issued at 115 PM CDT Thu Sep 24 2026
Surface analysis early this afternoon shows an expansive area of high pressure centered over Quebec, stretching west through the Middle Mississippi Valley. The surface high will remain steadily anchored in place through the weekend as a developing n...
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