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Sumner County Regional, TN Weather Forecast
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Sumner County Regional Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Patchy Fog | Fog | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Clearing | Chance of Showers | Chance of Showers |
| Hi: 89°FHi: 32°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C |
| POP: 70% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 133 AM CDT Thu Aug 20 2026 
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Issued: 1229 AM CDT Thu Aug 20 2026
Key Messages
Updated at 1229 AM CDT Thu Aug 20 2026- Slight risk (level 2 out of 5) for severe storms late tonight into early Thursday morning along and north of I-40. Damaging winds and heavy rain are the main concerns.
- Scattered thunderstorms develop again in the afternoon and evening with a low severe weather threat for areas south of I-40.
- Near normal temperatures are expected this weekend.
Aviation
... (06Z TAFS) Issued at 1229 AM CDT Thu Aug 20 2026
Conditions will...