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City of Metropolis, ILMetropolis, IL Weather Forecast
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| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Chance of T-Storm | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Partly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny |
| Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C |
| POP: 20% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1052 PM CDT Fri Sep 18 2026 
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Issued: 130 AM CDT Sat Sep 19 2026
Key Messages
- A Heat Advisory remains in effect through early Sunday evening, with high temperatures 15 to 20 degrees above normal in the middle 90s to around 100 degrees both today and Sunday.
- The passage of a cold front will begin a cooling trend Monday, with temperatures by Tuesday finally back down to near to even a little below seasonal normals. Near normal temperatures will then persist through the end of the week.
- The cold front will bring 40-70% chances of showers and storms to our region ...