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

71°F

22°C

Humidity 39%
Wind Speed SW 20 mph
Barometer 29.95 in (1013.7 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 20 Mar 6:53 pm EDT
Extended Forecast for

3 Miles S Tallassee TN

  • Tonight

    Tonight: Partly cloudy, with a low around 56. West wind around 10 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 77. West wind 5 to 10 mph.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 59. West wind around 5 mph becoming south in the evening.

    Low: 59 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 67. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. West wind around 10 mph, with gusts as high as 30 mph.
Saturday
A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 77. West wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 59. West wind around 5 mph becoming south in the evening.
Sunday
Sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 59. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Partly sunny, with a high near 67. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 42. North wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 45.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 53.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Tallassee TN
 35.51°N 83.93°W (Elev. 1939 ft)
7:06 pm EDT Mar 20, 2026
7pm EDT Mar 20, 2026-6pm EDT Mar 27, 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