Decatur, TN Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, TN in one place.
Rain showers likely before 11am, then showers and thunderstorms likely. Mostly cloudy, with a high near 79. Northeast wind 0 to 5 mph. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Decatur, TN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 28, 2026 1:01 AM EDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Decatur, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 1:01 AM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Sunday looks like the warmest upcoming period in Decatur at 80 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Saturday at about 0 to 5 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 28, 2026 1:01 AM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- MRX
- Radar station
- KHTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind 0 to 5 mph. Chance of precipitation is 70%.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Showers And Thunderstorms Likely
|
79°F |
0 to 5 mph
NE
|
|
Saturday Night
May 30
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
59°F |
0 to 5 mph
NE
|
|
Sunday
May 31
|
Chance Showers And Thunderstorms
|
80°F |
0 to 5 mph
SE
|
|
Sunday Night
May 31
|
Chance Showers And Thunderstorms
|
59°F |
0 mph
|
|
Monday
Jun 1
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
79°F |
0 to 5 mph
W
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms
|
56°F |
0 to 5 mph
N
|
|
Tuesday
Jun 2
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
79°F |
5 mph
NE
|
|
Tuesday Night
Jun 2
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
55°F |
0 to 5 mph
NE
|
|
Wednesday
Jun 3
|
Sunny
|
78°F |
0 to 5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.
Nearby forecast pages are not available for this location yet.
