National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

68°F

20°C

Humidity 45%
Wind Speed SW 13 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Mar 7:53 pm EDT
Extended Forecast for

5 Miles SW Walland TN

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Southwest wind around 10 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 60. Southwest wind 5 to 10 mph.

    Low: 60 °F

    Chance
    T-storms

  • Sunday

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

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 68. West wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Northeast wind 5 to 10 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. Southwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Southwest wind around 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 60. Southwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 82. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 60. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Partly sunny, with a high near 68. West wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 43. Northeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 66.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 47.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
Sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers. Mostly clear, with a low around 54.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Walland TN
 35.69°N 83.89°W (Elev. 1864 ft)
Last Update:
7:06 pm EDT Mar 20, 2026
Forecast Valid:
8pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation