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Lake Copiah, MS Weather Forecast
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Lake Copiah Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY |
 |  | |  | | | | | | | | |
| Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Clearing | Chance of T-Storm | Clearing | Chance of T-Storm | Clearing | Chance of T-Storm | Clearing | Chance of T-Storm |
| Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C |
| POP: 40% | POP: 70% | POP: 50% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 831 PM CDT Tue Sep 01 2026 
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Issued: 631 PM CDT Tue Sep 1 2026
Key Messages
- Dangerous heat stress will persist across the forecast area this week.
- Rain chances begin increasing northward Thursday, with chances expected areawide Friday through the Labor Day weekend.
Discussion
... Issued at 123 PM CDT Tue Sep 1 2026
Tonight through Labor Day...High pressure aloft and at the surface will remain in place across the region through the forecast period. Thus, expect a continuation of humid conditions and hot temperatures. Highs each afternoon will warm into the midd...