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Collier Lake, TN Weather Forecast
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Collier Lake Weather Forecast
| REST OF TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | | | |  |  | | |  | | |
| Sunny | Partly Cloudy | Sunny | Partly Cloudy | Mostly Sunny | Chance of T-Storm | Chance of Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy |
| Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C |
| POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 906 AM CDT Sat Sep 19 2026 
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Issued: 635 AM CDT Sat Sep 19 2026
Key Messages
Issued at 634 AM CDT Sat Sep 19 2026- An area-wide Heat Advisory remains in effect through 8 PM today, with afternoon temperatures reaching the upper 90s to lower 100s.
- A weak cold front will bring isolated to scattered showers and thunderstorms early next week. Widespread significant rainfall is not expected.
- A slight cooling trend is expected by Wednesday, bringing temperatures down from near-record values to above-normal for late September.
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