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.

Fair

68°F

20°C

Humidity 94%
Wind Speed N 7 mph
Barometer 29.99 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 19 Jun 7:55 am CDT
Extended Forecast for

3 Miles W Portland TN

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 81. North wind around 5 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. North wind around 5 mph becoming calm.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, sunny, with a high near 85. Calm wind becoming south southeast around 5 mph.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Calm wind becoming east southeast around 5 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 87 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 73. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 73 °F

    Showers
    Likely then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 82. West southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West wind 5 to 10 mph. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Northwest wind around 5 mph.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 81. North wind around 5 mph.
Tonight
Mostly cloudy, with a low around 62. North wind around 5 mph becoming calm.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 85. Calm wind becoming south southeast around 5 mph.
Saturday Night
Mostly clear, with a low around 66. Calm wind becoming east southeast around 5 mph.
Sunday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 73. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Monday
Showers and possibly a thunderstorm. High near 82. West southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West wind 5 to 10 mph. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 81. Northwest wind around 5 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Portland TN
 36.58°N 86.56°W (Elev. 791 ft)
Last Update:
1:31 am CDT Jun 19, 2026
Forecast Valid:
8am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation