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Town of Decatur, TennesseeDecatur, TN 7-Day Night Weather Forecast
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Decatur, TN Weather Forecast
Decatur, TN Weather Forecast Date: 706 AM EDT Tue Sep 29 2026
The area/counties/county of: Meigs, including the city of Big Spring.or toggle through each period.
Today... Sunny. Highs in the mid 80s. Light winds.
Tonight... Mostly clear. Lows in the mid 50s. Light winds.
Wednesday... Sunny. Highs in the upper 80s. Light winds.
Wednesday Night... Mostly clear. Lows in the upper 50s to lower 60s. Light winds.
Thursday... Sunny. Highs in the upper 80s. Light winds.
Thursday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.
Friday... Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30%.
Friday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 60s.
Saturday... Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 80%.
Saturday Night... Showers likely with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of rain 70%.
Sunday... Showers in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 80%.
Sunday Night... Mostly cloudy with a 50% chance of showers. Lows in the lower 60s.
POP = Probability of Precipitation
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