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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

55°F

13°C

Humidity 38%
Wind Speed Vrbl 3 G 12 mph
Barometer 30.27 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 19 Mar 11:55 am EDT
Extended Forecast for

3 Miles ENE Watts Bar Dam TN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. Calm wind becoming south around 5 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

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

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 74. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 74 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. Southwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 8pm. Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. Calm wind becoming south around 5 mph.
Tonight
Mostly clear, with a low around 39. Calm wind.
Friday
Increasing clouds, with a high near 74. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 10 percent chance of showers before 8pm. Mostly clear, with a low around 52. Calm wind.
Sunday
Sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Watts Bar Dam TN
 35.63°N 84.75°W (Elev. 764 ft)
Last Update:
11:16 am EDT Mar 19, 2026
Forecast Valid:
12pm EDT Mar 19, 2026-6pm EDT Mar 25, 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