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

4 Miles N Lafayette TN

  • Today

    Today: Sunny, with a high near 94. Heat index values as high as 101. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 71. Northeast wind around 5 mph becoming calm.

    Low: 71 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. North wind around 5 mph becoming calm.

    Low: 70 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North wind around 5 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 94. Heat index values as high as 101. Calm wind becoming north northeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 71. Calm wind.
Monday
Sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming north northeast around 5 mph in the afternoon.
Monday Night
Clear, with a low around 71. Northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 95. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 20%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. North wind around 5 mph becoming calm.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Lafayette TN
 36.58°N 86.03°W (Elev. 725 ft)
Last Update:
5:53 am CDT Aug 17, 2025
Forecast Valid:
9am CDT Aug 17, 2025-6pm CDT Aug 23, 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