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 NW Lafayette TN

Heat Advisory September 18, 10:54pm until September 20, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 10:54pm until September 20, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Tonight

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 1pm and 4pm. Patchy fog before 8am. Otherwise, sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

    High: 98 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Saturday Night

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

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 97. Heat index values as high as 101. West southwest wind around 5 mph.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71. Calm wind becoming south around 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. South southeast wind around 5 mph becoming north northwest in the afternoon.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. North wind around 5 mph. Chance of precipitation is 60%.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Calm wind.
Saturday
A slight chance of showers and thunderstorms between 1pm and 4pm. Patchy fog before 8am. Otherwise, sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 72. Calm wind becoming south around 5 mph.
Sunday
Mostly sunny and hot, with a high near 97. Heat index values as high as 101. West southwest wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 71. Calm wind becoming south around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. South southeast wind around 5 mph becoming north northwest in the afternoon.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. North wind around 5 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. North wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NW Lafayette TN
 36.58°N 86.11°W (Elev. 696 ft)
Last Update:
10:26 pm CDT Sep 18, 2026
Forecast Valid:
10pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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