Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

72°F

22°C

Humidity	91%
Wind Speed	Calm
Barometer	30.02 in (1015.3 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	18 Aug 5:53 am EDT

More Information:

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

Extended Forecast for

4 Miles SE Tallassee TN

Today
High: 77 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 65 °F
Slight Chance
T-storms then
Mostly Clear
Tuesday
High: 75 °F
Slight Chance
T-storms then
Heavy Rain
Tuesday Night
Low: 65 °F
Heavy Rain
then Partly
Cloudy
Wednesday
High: 76 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 64 °F
Chance
T-storms then
Slight Chance
Showers
Thursday
High: 74 °F
Slight Chance
T-storms then
Chance
T-storms
Thursday Night
Low: 64 °F
Chance
T-storms
Friday
High: 73 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 77. North wind around 5 mph.

Tonight

A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 65. Northeast wind around 5 mph becoming southeast after midnight.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 11am. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 75. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night

A 30 percent chance of showers and thunderstorms before 8pm. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 65. Southeast wind around 5 mph.

Wednesday

A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 76. South wind around 5 mph becoming northwest in the afternoon.

Wednesday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 64. Northwest wind around 5 mph becoming southeast in the evening. Chance of precipitation is 30%.

Thursday

A slight chance of thunderstorms, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 74. Southeast wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 50%.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 64.

Friday

A 50 percent chance of showers and thunderstorms after 8am. Partly sunny, with a high near 73.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

Saturday

Showers and thunderstorms likely. Partly sunny, with a high near 71. Chance of precipitation is 60%.

Saturday Night

Showers and thunderstorms likely. Partly cloudy, with a low around 62. Chance of precipitation is 60%.

Sunday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 70.