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

67°F

19°C

Humidity 71%
Wind Speed SW 8 mph
Barometer 29.89 in (1011.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Mar 9:53 pm EDT
Extended Forecast for

3 Miles NNW Rockford TN

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before midnight.  Areas of smoke before 2am. Partly cloudy, with a low around 59. Southwest wind around 5 mph.

    Low: 59 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 83. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 2am.  Increasing clouds, with a low around 60. Southwest wind around 10 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 10 percent chance of showers before 8am.  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.

    High: 69 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

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

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67. Northeast wind around 5 mph becoming calm  in the morning.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am.  Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before 2pm.  Mostly cloudy, with a high near 67.

    High: 67 °F

    Slight Chance
    Showers

  • Wednesday Night

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

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before midnight. Areas of smoke before 2am. Partly cloudy, with a low around 59. Southwest wind around 5 mph.
Sunday
Sunny, with a high near 83. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers after 2am. Increasing clouds, with a low around 60. Southwest wind around 10 mph, with gusts as high as 25 mph.
Monday
A 10 percent chance of showers before 8am. 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 44. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 67. Northeast wind around 5 mph becoming calm in the morning.
Tuesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. Calm wind.
Wednesday
A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 67.
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 78.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
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.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Rockford TN
 35.87°N 83.95°W (Elev. 823 ft)
7:01 pm EDT Mar 21, 2026
10pm 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