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

63°F

17°C

Humidity 88%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Oct 11:15 pm CDT
Extended Forecast for

3 Miles SSE Portland TN

  • Tonight

    Tonight: Mostly clear, with a low around 58. Calm wind becoming south southeast around 5 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Southeast wind 5 to 10 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South southeast wind around 5 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm. Partly sunny, with a high near 82. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 65. South southeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. North northeast wind 5 to 10 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Northeast wind 5 to 10 mph.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Calm wind becoming south southeast around 5 mph.
Sunday
Sunny, with a high near 85. Southeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 64. South southeast wind around 5 mph.
Monday
A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm. Partly sunny, with a high near 82. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 65. South southeast wind around 5 mph. Chance of precipitation is 40%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. North northeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 55. Northeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Portland TN
 36.56°N 86.5°W (Elev. 801 ft)
Last Update:
10:41 pm CDT Oct 4, 2025
Forecast Valid:
11pm CDT Oct 4, 2025-6pm CDT Oct 11, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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