Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

86°F

30°C

Humidity	61%
Wind Speed	W 6 mph
Barometer	30.04 in (1015.9 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	7 Jul 1:53 pm EDT

More Information:

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

Extended Forecast for

5 Miles SSW Maryville TN

This Afternoon
High: 87 °F
T-storms
Likely
Tonight
Low: 71 °F
Chance
T-storms then
Patchy Fog
Wednesday
High: 89 °F
Patchy Fog
then Chance
T-storms
Wednesday Night
Low: 71 °F
Chance
T-storms
Thursday
High: 87 °F
Chance
T-storms then
T-storms
Thursday Night
Low: 72 °F
Showers then
Chance
Showers
Friday
High: 88 °F
Showers
Likely then
T-storms
Friday Night
Low: 72 °F
T-storms then
Showers
Likely
Saturday
High: 86 °F
Showers then
T-storms

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 87. Heat index values as high as 96. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Thursday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.

Thursday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 72. South wind around 5 mph. Chance of precipitation is 80%.

Friday

Showers likely, then showers and possibly a thunderstorm after 11am. High near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.

Friday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am. Low around 72. Chance of precipitation is 80%.

Saturday

Showers likely, then showers and possibly a thunderstorm after 8am. High near 86. Chance of precipitation is 90%.

Saturday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.

Sunday

Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.

Sunday Night

Showers and thunderstorms. Low around 70. Chance of precipitation is 80%.

Monday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.