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.

Mostly Cloudy

81°F

27°C

Humidity 79%
Wind Speed S 9 mph
Barometer 30.06 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 10 Sep 11:35 am CDT
Extended Forecast for

3 Miles NNE Westmoreland TN

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly between 3am and 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. South wind around 5 mph becoming calm. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 98. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 88. South wind around 5 mph. Chance of precipitation is 90%.

    High: 88 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming west around 5 mph.

    High: 90 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92. South wind around 5 mph.

    High: 92 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly between 3am and 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. South wind around 5 mph becoming calm. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 98. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 88. South wind around 5 mph. Chance of precipitation is 90%.
Saturday Night
A 20 percent chance of showers before 1am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 68. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming west around 5 mph.
Sunday Night
Mostly clear, with a low around 67. Calm wind.
Monday
Sunny, with a high near 92. South wind around 5 mph.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers. Mostly clear, with a low around 68.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Westmoreland TN
 36.61°N 86.22°W (Elev. 843 ft)
Last Update:
10:36 am CDT Sep 10, 2026
Forecast Valid:
12pm CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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