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

79°F

26°C

Humidity 89%
Wind Speed SW 14 G 22 mph
Barometer 29.74 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Jun 3:35 am CDT
Extended Forecast for

5 Miles ENE Portland TN

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 85. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 65. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: Sunny, with a high near 81. North northwest wind around 5 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. North wind around 5 mph becoming calm.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Calm wind becoming southeast around 5 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind becoming south southeast around 5 mph.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 70. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 70 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 80. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 85. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and thunderstorms likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 65. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 81. North northwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 62. North wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 84. Calm wind becoming southeast around 5 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind becoming south southeast around 5 mph.
Sunday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 70. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm. High near 80. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Portland TN
 36.62°N 86.44°W (Elev. 820 ft)
Last Update:
1:31 am CDT Jun 18, 2026
Forecast Valid:
4am CDT Jun 18, 2026-6pm CDT Jun 24, 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