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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Hazardous Weather Conditions

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Overcast

63°F

17°C

Humidity 100%
Wind Speed Vrbl 5 mph
Barometer 29.99 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 Nov 11:35 pm EST
Extended Forecast for

Decatur TN

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 59. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 8am, then a slight chance of showers between 8am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. North wind around 5 mph becoming calm.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming north around 5 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 68. Calm wind becoming south around 5 mph in the afternoon.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 52. South wind around 5 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 59. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm before 8am, then a slight chance of showers between 8am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 45. North wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 67. Calm wind becoming north around 5 mph.
Sunday Night
Mostly clear, with a low around 39. Calm wind.
Monday
Partly sunny, with a high near 68. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 52. South wind around 5 mph, with gusts as high as 20 mph.
Tuesday
Showers. High near 66. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 80%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 32.
Thanksgiving Day
Sunny, with a high near 53.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur TN
 35.54°N 84.81°W (Elev. 682 ft)
Last Update:
6:06 pm EST Nov 21, 2025
Forecast Valid:
12am EST Nov 22, 2025-6pm EST Nov 28, 2025
 
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