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Sumner County Weather Forecast
Sumner County, TN Weather Forecast Date: 238 PM CDT Thu Sep 17 2026
Weather forecast for Sumner County, TN
Tonight Lo: 75°F Lo: 24°C |
Tonight... Clear. Lows in the mid 70s. North winds around 5 mph this evening, becoming light and variable. |
Fri Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Friday... Sunny, hot with highs in the upper 90s. Northwest winds around 5 mph. Heat index values up to 106. |
Sat Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Saturday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. South winds around 5 mph, becoming west in the afternoon. Chance of rain 20%. |
| Sun Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Sunday... Mostly sunny. Hot with highs in the upper 90s. |
| Mon Hi: 95°FHi: 35°C Lo: 69°F Lo: 21°C |
Monday... Mostly sunny. Hot with highs in the mid 90s. |
| Tue Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Tuesday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30%. |
| Wed Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Wednesday... Mostly sunny. Highs in the mid 80s. |
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