Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Thunderstorm Light Rain

80°F

27°C

Humidity	44%
Wind Speed	SW 15 G 24 mph
Barometer	29.84 in (1009.5 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	21 Mar 5:53 pm EDT

More Information:

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

Extended Forecast for

6 Miles SSW Maryville TN

Tonight
Low: 59 °F
Chance
T-storms then
Slight Chance
T-storms
Sunday
High: 82 °F
Sunny
Sunday Night
Low: 59 °F
Increasing
Clouds
Monday
High: 69 °F
Gradual
Clearing
Monday Night
Low: 43 °F
Partly Cloudy
Tuesday
High: 67 °F
Mostly Cloudy
Tuesday Night
Low: 47 °F
Mostly Cloudy
then Slight
Chance
Showers
Wednesday
High: 66 °F
Slight Chance
Showers
Wednesday Night
Low: 50 °F
Mostly Cloudy
then Slight
Chance
Showers

Detailed Forecast

Tonight

A 50 percent chance of showers and thunderstorms, mainly before 11pm. Areas of smoke before 2am. Partly cloudy, with a low around 59. Southwest wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Sunny, with a high near 82. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Sunday Night

Increasing clouds, with a low around 59. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Monday

Cloudy through mid morning, then gradual clearing, with a high near 69. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Partly cloudy, with a low around 43. Northeast wind around 10 mph.

Tuesday

Mostly cloudy, with a high near 67. Northeast wind around 5 mph becoming northwest in the afternoon.

Tuesday Night

A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. Calm wind becoming south around 5 mph after midnight.

Wednesday

A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 66.

Wednesday Night

A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 50.

Thursday

A 20 percent chance of showers before 2pm. Partly sunny, with a high near 77.