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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 PM EDT Thu Mar 12 2026
The area/counties/county of: Meigs, including the city of Big Spring.or toggle through each period.
Tonight... Mostly clear. Lows in the lower 30s. Light winds.
Friday... Sunny. Highs in the mid 60s. Southwest winds 5 to 15 mph with gusts up to 25 mph.
Friday Night... Mostly clear. Lows in the upper 30s. Light winds.
Saturday... Mostly sunny. Highs in the lower 70s. Light winds.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. Light winds.
Sunday... Mostly cloudy. Highs in the lower 70s.
Sunday Night... Mostly cloudy. A chance of showers in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the upper 30s. Chance of rain 90%.
Monday... Mostly cloudy. A chance of showers in the morning. Much cooler with highs in the lower 50s. Chance of rain 30%.
Monday Night... Mostly cloudy in the evening, then clearing. Colder with lows in the lower 20s.
Tuesday... Mostly sunny. Highs in the mid 40s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Cold with lows in the mid 20s.
Wednesday... Partly sunny. Highs in the mid 50s.
Wednesday Night... Partly cloudy. Lows in the mid 30s.
POP = Probability of Precipitation
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