Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

82°F

28°C

Humidity 56%
Wind Speed W 7 mph
Barometer 30.05 in (1016.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 25 May 3:53 pm EDT
Extended Forecast for

4 Miles E Greenback TN

Flood Watch until May 26, 03:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until May 26, 03:00am

    NOW until 3:00am Tue

    Flood Watch

  • Memorial Day

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then showers likely.  Low around 65. Calm wind.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 11am.  Partly sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then showers after 2am.  Low around 64. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 11am.  High near 81. Light south wind becoming southwest 5 to 10 mph in the morning.  Chance of precipitation is 90%.

    High: 81 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers.  Low around 64. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 83. Calm wind becoming northwest around 5 mph.  Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Mostly Cloudy

Detailed Forecast

Memorial Day
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 80. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 4am, then showers likely. Low around 65. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 11am. Partly sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 11pm, then showers after 2am. Low around 64. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Wednesday
Showers, with thunderstorms also possible after 11am. High near 81. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 64. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Greenback TN
 35.66°N 84.11°W (Elev. 971 ft)
2:26 pm EDT May 25, 2026
4pm EDT May 25, 2026-6pm EDT Jun 1, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database