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 >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Partly Cloudy

82°F

28°C

Humidity 40%
Wind Speed S 8 G 16 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Mar 1:53 pm EDT
Extended Forecast for

Harrison TN

  • This Afternoon

    This Afternoon: Areas of smoke. Sunny, with a high near 83. Southwest wind around 5 mph.

    High: 83 °F

    Areas Smoke

  • Tonight

    Tonight: Areas of smoke before 2am. Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Areas Smoke

  • Sunday

    Sunday: Sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. Southwest wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 68. Northeast wind around 5 mph becoming south in the afternoon.

    High: 68 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday 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

  • Wednesday

    Wednesday: A 10 percent chance of showers before 8am. Partly sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Showers then
    Partly Sunny

Detailed Forecast

This Afternoon
Areas of smoke. Sunny, with a high near 83. Southwest wind around 5 mph.
Tonight
Areas of smoke before 2am. Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 84. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 63. Southwest wind around 5 mph.
Monday
Mostly sunny, with a high near 74. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 47. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 68. Northeast wind around 5 mph becoming south in the afternoon.
Tuesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 50.
Wednesday
A 10 percent chance of showers before 8am. Partly sunny, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrison TN
 35.14°N 85.15°W (Elev. 856 ft)
Last Update:
2:26 pm EDT Mar 21, 2026
Forecast Valid:
2pm EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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