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

54°F

12°C

Humidity 47%
Wind Speed SW 7 G 14 mph
Barometer 29.89 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 1 Jan 2:55 pm CST
Extended Forecast for

3 Miles SSE Portland TN

  • New Year's Day

    New Year's Day: Sunny, with a high near 53. South southwest wind around 5 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 35. Southwest wind around 5 mph becoming calm.

    Low: 35 °F

    Increasing
    Clouds

  • Friday

    Friday: A 30 percent chance of showers, mainly after 5pm. Cloudy, with a high near 51. Calm wind becoming east around 5 mph.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 4am. Cloudy, with a low around 39. Calm wind becoming north northeast around 5 mph in the evening. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 48. North northeast wind 5 to 10 mph.

    High: 48 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. North wind around 5 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 45. North wind around 5 mph becoming calm in the afternoon.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. Calm wind becoming south around 5 mph after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 56. South wind 5 to 10 mph.

    High: 56 °F

    Sunny

Detailed Forecast

New Year's Day
Sunny, with a high near 53. South southwest wind around 5 mph.
Tonight
Increasing clouds, with a low around 35. Southwest wind around 5 mph becoming calm.
Friday
A 30 percent chance of showers, mainly after 5pm. Cloudy, with a high near 51. Calm wind becoming east around 5 mph.
Friday Night
Showers likely, mainly before 4am. Cloudy, with a low around 39. Calm wind becoming north northeast around 5 mph in the evening. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 48. North northeast wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 27. North wind around 5 mph.
Sunday
Sunny, with a high near 45. North wind around 5 mph becoming calm in the afternoon.
Sunday Night
Mostly cloudy, with a low around 31. Calm wind becoming south around 5 mph after midnight.
Monday
Sunny, with a high near 56. South wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 61.
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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:
12:31 pm CST Jan 1, 2026
Forecast Valid:
3pm CST Jan 1, 2026-6pm CST Jan 7, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation