Mermet, IL Weather Forecast
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Mermet Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Chance of T-Storm | Partly Cloudy | Partly Sunny | Mostly Cloudy | Partly Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 PM CDT Mon Sep 21 2026 

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Issued: 150 PM CDT Mon Sep 21 2026
Key Messages
- A few showers or thunderstorms will be possible mainly over the Ozark Foothills of southeast Missouri this afternoon. A few showers could linger through the night and into early Tuesday. Otherwise, the forecast is dry through the end of the work week.
- Fall weather is arriving right on time with the astronomical beginning of autumn. In general, temperatures will be near or a few degrees below normal through next weekend. Highs will be in the upper 70s to lower 80s and lows will be in ...
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