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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

A Few Clouds

25°F

-4°C

Humidity 93%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 17 Mar 8:35 am EDT
Extended Forecast for

4 Miles WNW Decatur TN

  • Today

    Today: Mostly sunny, with a high near 42. Light west wind increasing to 5 to 10 mph in the morning.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A slight chance of snow showers before 2pm, then a slight chance of sprinkles. Mostly cloudy, with a high near 51. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Sprinkles/Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 42. Light west wind increasing to 5 to 10 mph in the morning.
Tonight
Increasing clouds, with a low around 24. Calm wind.
Wednesday
A slight chance of snow showers before 2pm, then a slight chance of sprinkles. Mostly cloudy, with a high near 51. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 31. Calm wind.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 40. Calm wind.
Friday
Mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Decatur TN
 35.55°N 84.87°W (Elev. 696 ft)
Last Update:
7:51 am EDT Mar 17, 2026
Forecast Valid:
8am EDT Mar 17, 2026-6pm EDT Mar 23, 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