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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles SSE Portland TN

  • Today

    Today: Mostly cloudy, with a high near 45. Southeast wind around 5 mph.

    High: 45 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. East southeast wind around 5 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 60. South southeast wind around 5 mph becoming west in the afternoon.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 66. West southwest wind 5 to 10 mph.

    High: 66 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after 9pm. Cloudy, with a low around 44. West southwest wind around 5 mph becoming north after midnight. Chance of precipitation is 60%.

    Low: 44 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 53. North wind around 5 mph.

    High: 53 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35. Northeast wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly cloudy, with a high near 51. Northeast wind around 5 mph.

    High: 51 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 45. Southeast wind around 5 mph.
Tonight
Mostly cloudy, with a low around 33. East southeast wind around 5 mph.
Monday
Sunny, with a high near 60. South southeast wind around 5 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 41. Calm wind becoming south southwest around 5 mph after midnight.
Tuesday
Mostly cloudy, with a high near 66. West southwest wind 5 to 10 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after 9pm. Cloudy, with a low around 44. West southwest wind around 5 mph becoming north after midnight. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 53. North wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 35. Northeast wind around 5 mph.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 51. Northeast wind around 5 mph.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 35.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 51.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 34.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 50.
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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:
5:16 am CST Feb 8, 2026
Forecast Valid:
9am CST Feb 8, 2026-6pm CST Feb 14, 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