Heavy Rain in the Ohio and Tennessee Valleys; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. One tropical wave will bring periods of heavy rain, thunderstorms, flood risk, and landslides to Puerto Rico and the US Virgin Islands through Friday morning. 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

78°F

26°C

Humidity	67%
Wind Speed	W 7 mph
Barometer	29.96 in (1013.4 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	24 Sep 5:53 pm EDT

More Information:

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

Extended Forecast for

2 Miles S Maryville TN

Tonight
Low: 69 °F
Showers and
Patchy Fog
Thursday
High: 79 °F
Showers and
Patchy Fog
Thursday Night
Low: 65 °F
Chance
T-storms then
Chance
Showers and
Patchy Fog
Friday
High: 77 °F
Slight Chance
Showers then
Chance
T-storms
Friday Night
Low: 62 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 77 °F
Chance
Showers then
Chance
T-storms
Saturday Night
Low: 60 °F
Chance
T-storms then
Slight Chance
Showers
Sunday
High: 80 °F
Mostly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 61 °F
Slight Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Patchy fog before 1am, then patchy fog after 3am. Low around 69. Southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Patchy fog before 11am. High near 79. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Friday

A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Saturday

A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Sunday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80.

Sunday Night

A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 61.

Monday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81.

Monday Night

A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.

Tuesday Night

A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.