Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 30.12 in (1018.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Aug 4:53 am EDT
Extended Forecast for

2 Miles NE Maryville TN

Heat Advisory August 16, 05:06am until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 05:06am until August 17, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Today

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. Southwest wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Mostly sunny and hot, with a high near 94. Heat index values as high as 106. Southwest wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 2am.  Cloudy, then gradually becoming partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%.

    Low: 73 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 91 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. North wind around 5 mph becoming calm.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny and hot, with a high near 96. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 76. Southwest wind around 5 mph.
Monday
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny and hot, with a high near 94. Heat index values as high as 106. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
Mostly sunny and hot, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 69. North wind around 5 mph becoming calm.
Wednesday
Sunny and hot, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Maryville TN
 35.76°N 83.96°W (Elev. 994 ft)
2:25 am EDT Aug 16, 2026
5am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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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