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 WNW Lafayette TN

Heat Advisory August 18, 12:19pm until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 12:19pm until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 70. North northeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 99. Calm wind becoming north 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 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 70. North wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 87. North wind around 5 mph. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 100. North northeast wind around 5 mph.
Tonight
Clear, with a low around 70. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 93. Heat index values as high as 99. Calm wind becoming north northeast around 5 mph.
Tuesday Night
Mostly clear, with a low around 71. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 70. North wind around 5 mph.
Thursday
A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 87. North wind around 5 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming east northeast around 5 mph.
Friday Night
Mostly clear, with a low around 69.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Lafayette TN
 36.56°N 86.11°W (Elev. 899 ft)
Last Update:
10:24 am CDT Aug 18, 2025
Forecast Valid:
12pm CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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