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.

Overcast

72°F

22°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.03 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 25 May 10:15 pm CDT
Extended Forecast for

Westmoreland TN

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 4am. Low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 77. East southeast wind around 5 mph becoming south southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 66. South wind around 5 mph.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 80. Southwest wind around 5 mph. Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 10am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 64. Northeast wind around 5 mph.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. East northeast wind around 5 mph. Chance of precipitation is 40%.

    High: 77 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East northeast wind around 5 mph. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers, with thunderstorms also possible after 4am. Low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 77. East southeast wind around 5 mph becoming south southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 66. South wind around 5 mph.
Wednesday
Showers and possibly a thunderstorm. High near 80. Southwest wind around 5 mph. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 64. Northeast wind around 5 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. East northeast wind around 5 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East northeast wind around 5 mph. Chance of precipitation is 50%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 76.
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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:
6:07 pm CDT May 25, 2026
Forecast Valid:
10pm CDT May 25, 2026-6pm CDT Jun 1, 2026
 
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