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.

Partly Cloudy

75°F

24°C

Humidity 100%
Wind Speed SW 9 G 16 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 14 Jun 11:15 am CDT
Extended Forecast for

Portland TN

  • Today

    Today: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 83. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 7pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 70. West northwest wind around 5 mph becoming calm.

    Low: 70 °F

    Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 83. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 83 °F

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. South southwest wind around 5 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    T-storms

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 83. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms before 7pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 70. West northwest wind around 5 mph becoming calm.
Monday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 83. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. South southwest wind around 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Juneteenth
Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
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:
Portland TN
 36.58°N 86.5°W (Elev. 833 ft)
Last Update:
11:14 am CDT Jun 14, 2025
Forecast Valid:
11am CDT Jun 14, 2025-6pm CDT Jun 20, 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