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Old River Lake, TN Weather Forecast
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Old River Lake Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY |
 |  | | | | | | |  | |  | |
| Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Chance of T-Storm | Sunny | Partly Cloudy | Sunny |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | 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 |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 305 PM CDT Tue Sep 01 2026 
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Issued: 1157 AM CDT Tue Sep 1 2026
Key Messages
Issued at 1156 AM CDT Tue Sep 1 2026- A prolonged period of dangerous heat is expected, with an areawide Heat Advisory in effect from Wednesday through Saturday.
- Heat index values will frequently exceed 100 degrees, and limited overnight cooling will significantly increase heat stress.
- Isolated, diurnally driven showers and thunderstorms are possible each afternoon, with the highest chances along and west of the Mississippi River.
Discussion
... (This afternoon through next Monday) Issu...