Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Rain Fog/Mist

68°F

20°C

Humidity	93%
Wind Speed	Calm
Barometer	30.10 in (1018.3 mb)
Dewpoint	66°F (19°C)
Visibility	1.75 mi
Last update	21 May 9:53 am EDT

More Information:

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

Extended Forecast for

5 Miles S Maryville TN

Today
High: 77 °F
Showers
Tonight
Low: 66 °F
Chance
Showers
Friday
High: 81 °F
Showers
Friday Night
Low: 67 °F
Showers
Saturday
High: 80 °F
Showers
Saturday Night
Low: 66 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 82 °F
Chance
Showers then
Showers
Sunday Night
Low: 68 °F
Showers
Memorial Day
High: 83 °F
Showers

Detailed Forecast

Today

Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 77. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Showers likely, then showers and possibly a thunderstorm after 11am. High near 81. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers and possibly a thunderstorm. Low around 67. South wind around 5 mph. Chance of precipitation is 100%.

Saturday

Showers, with thunderstorms also possible after 11am. High near 80. South wind 5 to 10 mph. Chance of precipitation is 90%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm. Chance of precipitation is 50%.

Sunday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%.

Sunday Night

Showers and possibly a thunderstorm before 2am, then showers likely. Low around 68. Chance of precipitation is 80%.

Memorial Day

Showers, with thunderstorms also possible after 8am. High near 83. Chance of precipitation is 90%.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

Tuesday

Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 90%.

Tuesday Night

Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.

Wednesday

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