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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

70°F

21°C

Humidity 69%
Wind Speed SW 6 mph
Barometer 29.98 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Mar 9:55 am EDT
Extended Forecast for

Watts Bar Dam TN

  • Today

    Today: Sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Southwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Monday

    Monday: A 10 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 70. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 70 °F

    Slight Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 43. North wind around 5 mph.

    Low: 43 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 68. Northeast wind around 5 mph becoming calm.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.

    High: 70 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 58. Southwest wind around 5 mph, with gusts as high as 20 mph.
Monday
A 10 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 70. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 43. North wind around 5 mph.
Tuesday
Partly sunny, with a high near 68. Northeast wind around 5 mph becoming calm.
Tuesday Night
Partly cloudy, with a low around 44. Calm wind.
Wednesday
Mostly cloudy, with a high near 70. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 55.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watts Bar Dam TN
 35.63°N 84.78°W (Elev. 741 ft)
Last Update:
7:06 am EDT Mar 22, 2026
Forecast Valid:
10am EDT Mar 22, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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