National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Partly Cloudy

48°F

9°C

Humidity 82%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 3 Mar 3:35 am EST
Extended Forecast for

Decatur TN

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. South wind around 5 mph.

    Low: 50 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 70. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. South wind around 5 mph becoming calm after midnight.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. South wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 81. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 81 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. South wind around 5 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 70. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 51. South wind around 5 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 77. Light south wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 55. South wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 81. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 60.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 50%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Sunday
Showers likely. Cloudy, with a high near 76. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Monday
Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur TN
 35.52°N 84.79°W (Elev. 778 ft)
Last Update:
1:26 am EST Mar 3, 2026
Forecast Valid:
3am EST Mar 3, 2026-6pm EDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation