Heavy Rain and Flooding Threat in the Central U.S.; Winter Weather in Northern Alaska

Strong thunderstorms and heavy rain may produce flash flooding across the south-central Plains and lower Mississippi Valley today. The North Slope in Alaska will see the potential for wintry weather through today with ice accumulations possible on roadways. Incoming storms will bring long duration rainfall and strong winds to most of Southcentral Alaska through Friday. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

77°F

25°C

Humidity 37%
Wind Speed W 8 mph
Barometer 30.13 in (1019.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 28 Aug 2:53 pm EDT
Extended Forecast for

7 Miles E Greenback TN

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 81. Northwest wind around 5 mph.

    High: 81 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Northeast wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84. East wind around 5 mph becoming north in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Labor Day

    Labor Day: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 81. Chance of precipitation is 40%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 81. Northwest wind around 5 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 60. Calm wind.
Saturday
Sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 61. Northeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 84. East wind around 5 mph becoming north in the afternoon.
Sunday Night
Partly cloudy, with a low around 62.
Labor Day
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles E Greenback TN
 35.65°N 84.06°W (Elev. 928 ft)
1:31 pm EDT Aug 28, 2025
3pm EDT Aug 28, 2025-6pm EDT Sep 3, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database