Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

74°F

23°C

Humidity	88%
Wind Speed	N 3 mph
Barometer	30.08 in (1017.2 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	12 Aug 1:53 am EDT

More Information:

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

Extended Forecast for

Townsend TN

Overnight
Low: 70 °F
Slight Chance
T-storms
Tuesday
High: 88 °F
Chance
T-storms and
Patchy Fog
then T-storms
Tuesday Night
Low: 70 °F
Showers
Likely and
Patchy Fog
Wednesday
High: 89 °F
Showers
Likely and
Patchy Fog
Wednesday Night
Low: 70 °F
Showers
Likely then
Chance
T-storms
Thursday
High: 91 °F
Slight Chance
T-storms then
Showers
Likely
Thursday Night
Low: 69 °F
Showers
Likely then
Partly Cloudy
Friday
High: 93 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 70 °F
Chance
T-storms then
Mostly Clear

Detailed Forecast

Overnight

A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. Calm wind.

Tuesday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Patchy fog between 7am and 9am. High near 88. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 4am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 70. West wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday

Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 89. Heat index values as high as 96. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%.

Wednesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.

Thursday

A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph. Chance of precipitation is 60%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.

Friday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93.

Friday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.

Saturday

A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 93.

Saturday Night

A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 70.

Sunday

A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.