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Knox County Weather Forecast
| REST OF TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
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| Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C |
| POP: 20% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 228 PM EDT Fri Sep 11 2026 
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Issued: 234 PM EDT Fri Sep 11 2026
Key Messages
Updated at 229 PM EDT Fri Sep 11 2026- A few isolated showers and storms will be around through this evening, though most locations will stay dry. A strong storm or two is possible, mainly south of I-40.
- Saturday, better coverage of showers and storms. Locally heavy rainfall is the main threat due to elevated PW values of around 2 inches. Then showers and storms become more isolated on Sunday.
- Above normal temperatures expected through the forecast period.