Extreme Heat and Severe Thunderstorms Today

Extreme heat continues today from the central Plains to the lower Mississippi River Valley, over southeast Montana, and from southern California into the Southwest Deserts. Extreme Heat Warnings remain in effect. Severe thunderstorms capable of strong to severe wind gusts and large hail are possible across the Great Lakes into the Ohio Valley today into tonight. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

80°F

27°C

Humidity	76%
Wind Speed	Calm
Barometer	29.95 in (1012.8 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	27 Jul 10:53 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles E Greenback TN

Today
High: 90 °F
Hot
Tonight
Low: 72 °F
Mostly Clear
Tuesday
High: 92 °F
Slight Chance
Showers then
T-storms
Likely
Tuesday Night
Low: 70 °F
Showers
Likely
Wednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 65 °F
Mostly Clear
Thursday
High: 85 °F
Sunny
Thursday Night
Low: 64 °F
Mostly Clear
Friday
High: 87 °F
Mostly Sunny

Detailed Forecast

Today

Mostly cloudy, then gradually becoming sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind becoming north around 5 mph.

Tonight

Mostly clear, with a low around 72. Calm wind.

Tuesday

Showers and thunderstorms likely, mainly between 4pm and 5pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. 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 likely between 11pm and 2am. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

Wednesday

Mostly sunny, with a high near 86. Light north wind increasing to 5 to 10 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 85. North wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 64.

Friday

Mostly sunny, with a high near 87.

Friday Night

Mostly cloudy, with a low around 68.