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

6 Miles N Lafayette TN

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

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming northeast around 5 mph in the morning.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming north northeast around 5 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny
    then 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 87. North wind around 5 mph.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Calm wind.
Monday
Sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming northeast around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming north northeast around 5 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph in the afternoon.
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 87. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Lafayette TN
 36.6°N 86.05°W (Elev. 801 ft)
Last Update:
5:14 pm CDT Aug 17, 2025
Forecast Valid:
8pm CDT Aug 17, 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