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

Westmoreland TN

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 63. South wind 5 to 10 mph.

    Low: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers, mainly after 9am. Partly sunny, with a high near 75. South southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. South wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers between midnight and 3am, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 73. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 73 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Cloudy, with a low around 53. West southwest wind around 5 mph becoming north after midnight.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 66. North wind around 5 mph becoming calm in the afternoon.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind becoming south around 5 mph.

    Low: 53 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 63. South wind 5 to 10 mph.
Thursday
A 50 percent chance of showers, mainly after 9am. Partly sunny, with a high near 75. South southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 59. South wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers between midnight and 3am, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday
Showers and possibly a thunderstorm. High near 73. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
A 50 percent chance of showers. Cloudy, with a low around 53. West southwest wind around 5 mph becoming north after midnight.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 66. North wind around 5 mph becoming calm in the afternoon.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind becoming south around 5 mph.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 74.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 61.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 78.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
Showers. High near 73. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westmoreland TN
 36.57°N 86.25°W (Elev. 860 ft)
Last Update:
6:36 pm CST Mar 4, 2026
Forecast Valid:
8pm CST Mar 4, 2026-6pm CDT Mar 11, 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