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

Hazardous Weather Conditions

Current conditions at

Portland Municipal Airport (K1M5)

Lat: 36.59°NLon: 86.48°WElev: 818ft.

Fair

86°F

30°C

Humidity 75%
Wind Speed S 3 mph
Barometer 29.95 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 4 Sep 7:15 pm CDT
Extended Forecast for

White House TN

Heat Advisory September 4, 07:36pm until September 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 07:36pm until September 5, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 97 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. Calm wind becoming north northwest around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 92. Heat index values as high as 100. North northeast wind 5 to 10 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Northeast wind 5 to 10 mph.

    Low: 66 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 90. Northeast wind around 5 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. East northeast wind around 5 mph becoming south southeast after midnight.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. South wind 5 to 10 mph.

    High: 92 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming north northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 72. Calm wind becoming north northwest around 5 mph.
Sunday
Sunny, with a high near 92. Heat index values as high as 100. North northeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 66. Northeast wind 5 to 10 mph.
Labor Day
Sunny, with a high near 90. Northeast wind around 5 mph.
Monday Night
Mostly clear, with a low around 69. East northeast wind around 5 mph becoming south southeast after midnight.
Tuesday
Sunny, with a high near 92. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 71. South wind around 5 mph.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
White House TN
 36.48°N 86.65°W (Elev. 801 ft)
Last Update:
6:16 pm CDT Sep 4, 2026
Forecast Valid:
7pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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