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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

5 Miles N Lafayette TN

Heat Advisory August 18, 05:24am until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 05:24am until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Today

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. North northeast wind around 5 mph becoming calm.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 98. Calm wind becoming northeast around 5 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69. North wind around 5 mph becoming calm.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. North wind around 5 mph.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 100. North northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 69. North northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 93. Heat index values as high as 98. Calm wind becoming northeast around 5 mph.
Tuesday Night
Mostly clear, with a low around 71. Calm wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 69. North wind around 5 mph becoming calm.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. North wind around 5 mph.
Friday Night
Mostly clear, with a low around 69.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Lafayette TN
 36.6°N 86.05°W (Elev. 801 ft)
Last Update:
12:28 am CDT Aug 18, 2025
Forecast Valid:
5am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation