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

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

70°F

21°C

Humidity 57%
Wind Speed SW 12 mph
Barometer 29.90 in (1011.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 Mar 10:53 pm EDT
Extended Forecast for

2 Miles SSE Lenoir City TN

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Areas of smoke before 2am. Mostly clear, with a low around 58. Southwest wind around 5 mph.

    Low: 58 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 83. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 69. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. Northeast wind around 5 mph becoming calm  in the morning.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

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

    High: 66 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before midnight. Areas of smoke before 2am. Mostly clear, with a low around 58. Southwest wind around 5 mph.
Sunday
Sunny, with a high near 83. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 60. Southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 69. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 44. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 66. Northeast wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly cloudy, with a low around 48. Calm wind.
Wednesday
A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 77.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 76.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 46.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Lenoir City TN
 35.78°N 84.26°W (Elev. 801 ft)
7:01 pm EDT Mar 21, 2026
11pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database