Smith Lake, TN Weather Forecast
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Smith Lake Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Mostly Clear | Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny |
| Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C |
| POP: 40% | POP: 70% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 605 PM CDT Mon Aug 17 2026 

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Issued: 710 PM CDT Mon Aug 17 2026
Key Messages
Issued at 710 PM CDT Mon Aug 17 2026
- The Extreme Heat Warning has been extended across north Mississippi, much of eastern Arkansas, and southwest Tennessee. A Heat Advisory remains in effect for the rest of the Mid-South.
- An additional Heat Advisory has been issued for Tuesday for portions of eastern Arkansas and northern Mississippi.
- Isolated shower and thunderstorm chances exist along a weak front through this evening, but will offer only limited heat ...
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