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Decatur, TN Weather Forecast

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Decatur, TN Weather Forecast

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Decatur TN weather - Mostly Cloudy - 57°F
Mostly Cloudy
57°F
Updated 5:49 am
Feels Like 49°F
Humidity 82%
Wind N 0 mph
Barometer  30.11 in
Dew Point 51°F
Decatur TN weather - Mostly Cloudy - 14°C
Mostly Cloudy
14°C
Updated 5:49 am
Feels Like 9°C
Humidity 82%
Wind N 0 km/h
Barometer  101.9 kPa
Dew Point 11°C
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Decatur Weather Forecast

REST OF TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Decatur, TN Weather - Rest Of Tonight Partly Cloudy Decatur, TN Weather - Tuesday Sunny Decatur, TN Weather - Tuesday Night Mostly Clear Decatur, TN Weather - Wednesday Sunny Decatur, TN Weather - Wednesday Night Mostly Clear Decatur, TN Weather - Thursday Sunny Decatur, TN Weather - Thursday Night Mostly Clear Decatur, TN Weather - Friday Mostly Sunny Decatur, TN Weather - Friday Night Partly Cloudy Decatur, TN Weather - Saturday Chance Of Showers Decatur, TN Weather - Saturday Night Chance Of Showers Decatur, TN Weather - Sunday Chance Of T-Storm
Partly Cloudy Sunny Mostly Clear Sunny Mostly Clear Sunny Mostly Clear Mostly Sunny Partly Cloudy Chance of Showers Chance of Showers Chance of T-Storm
Lo: 51°FLo: 11°C Hi: 81°FHi: 27°C
 Lo: 51°FLo: 11°C Hi: 81°FHi: 27°C
 Lo: 51°FLo: 11°C Hi: 85°FHi: 29°C
 Lo: 53°FLo: 12°C Hi: 85°FHi: 29°C
 Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
POP: 30% POP: 50% POP: 60%
POP = Probability of Precipitation.
Weather Outlook Updated: 228 AM EDT Tue Oct 06 2026 Decatur, TN Weather - WeatherWorld.com

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Issued: 245 AM EDT Tue Oct 6 2026

Key Messages

Updated at 242 AM EDT Tue Oct 6 2026
  • Dry weather to continue the rest of the week.
  • Temperatures to remain above normal with a gradual warming trend each day.
  • Tropical development is expected over the Gulf, which may impact the Tennessee valley and southern Appalachians this weekend.

Discussion

... Issued at 242 AM EDT Tue Oct 6 2026

A 1024 mb high is currently centered over Michigan with troughing well to the north and weak northwesterly flow moving in from the upper ridge out west. The...