Mason Lake, TN Weather Forecast
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Mason Lake Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Chance of T-Storm | Chance of Showers | Chance of T-Storm | Clearing | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C |
| POP: 20% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 133 AM CDT Mon Aug 24 2026 

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Issued: 1214 AM CDT Mon Aug 24 2026
Key Messages
Updated at 1212 AM CDT Mon Aug 24 2026- Look for dry, cooler evening and overnight periods through Tuesday morning. Fog is possible across the river valleys each morning.
- Low to medium rain and storm chances return Wednesday and Wednesday night, then taper off on Thursday. But no hazardous weather is expected for the foreseeable future.
- Temperatures from Wednesday through the weekend will stay close to seasonal norms, then perhaps a little warmer to start off next week.
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