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 >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

Fair

75°F

24°C

Humidity 47%
Wind Speed W 9 mph
Barometer 29.93 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 Mar 2:35 pm EDT
Extended Forecast for

Flag Pond TN

  • This Afternoon

    This Afternoon: A chance of thunderstorms after 5pm. Areas of smoke. Partly sunny, with a high near 73. West wind around 5 mph. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms before 2am. Areas of smoke before 2am. Partly cloudy, with a low around 58. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 56. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 25 mph.

    Low: 56 °F

    Mostly Clear
    then Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 63. North wind around 5 mph, with gusts as high as 20 mph.

    High: 63 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. North wind around 5 mph becoming calm.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 62.

    High: 62 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A chance of thunderstorms after 5pm. Areas of smoke. Partly sunny, with a high near 73. West wind around 5 mph. Chance of precipitation is 30%.
Tonight
A 50 percent chance of showers and thunderstorms before 2am. Areas of smoke before 2am. Partly cloudy, with a low around 58. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 56. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 25 mph.
Monday
A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 63. North wind around 5 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 38. North wind around 5 mph becoming calm.
Tuesday
Partly sunny, with a high near 61. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 62.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 48.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 71.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Flag Pond TN
 36.04°N 82.54°W (Elev. 2201 ft)
Last Update:
2:26 pm EDT Mar 21, 2026
Forecast Valid:
2pm EDT Mar 21, 2026-6pm EDT Mar 27, 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