Significant Heat in the Northwest U.S.; Tropical Rainfall Potential in the Southwest U.S.

A significant late season heat wave continues in the interior Pacific Northwest for at least one more day before easing somewhat Friday into Saturday. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. through Saturday which may bring areas of flooding. 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

76°F

24°C

Humidity	72%
Wind Speed	SW 15 mph
Barometer	29.89 in (1011.1 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	4 Sep 11:53 am EDT

More Information:

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

Extended Forecast for

7 Miles WNW Tallassee TN

This Afternoon
High: 83 °F
Chance
T-storms
Tonight
Low: 66 °F
Showers
Likely then
Mostly Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 68 °F
Slight Chance
T-storms
Saturday
High: 83 °F
Showers
Likely
Saturday Night
Low: 60 °F
Showers
Likely then
Slight Chance
Showers
Sunday
High: 77 °F
Mostly Sunny
Sunday Night
Low: 54 °F
Mostly Clear
Monday
High: 77 °F
Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 83. Southwest wind around 10 mph.

Tonight

Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming southeast in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Sunny, with a high near 89. South wind around 5 mph becoming southwest in the afternoon.

Friday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind around 5 mph. Chance of precipitation is 20%.

Saturday

A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 60%.

Saturday Night

Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. North wind around 5 mph. Chance of precipitation is 60%.

Sunday

Mostly sunny, with a high near 77. North wind 5 to 10 mph.

Sunday Night

Mostly clear, with a low around 54.

Monday

Sunny, with a high near 77.

Monday Night

Mostly clear, with a low around 55.

Tuesday

Sunny, with a high near 81.

Tuesday Night

Mostly clear, with a low around 56.