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.

Partly Cloudy

75°F

24°C

Humidity 54%
Wind Speed SW 7 mph
Barometer 30.00 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Oct 11:35 pm CDT
Extended Forecast for

4 Miles SSW Portland TN

  • Overnight

    Overnight: Mostly clear, with a low around 59. South southwest wind around 10 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers between 10am and noon. Increasing clouds, with a temperature falling to around 58 by 5pm. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 65 °F⇓

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 59. North wind around 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. East northeast wind around 5 mph.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65. East southeast wind around 5 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40. Calm wind becoming east around 5 mph.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. East northeast wind around 5 mph becoming calm.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 59. South southwest wind around 10 mph.
Friday
A slight chance of showers between 10am and noon. Increasing clouds, with a temperature falling to around 58 by 5pm. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 44. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59. North wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 37. East northeast wind around 5 mph.
Sunday
Sunny, with a high near 65. East southeast wind around 5 mph.
Sunday Night
Clear, with a low around 40. Calm wind becoming east around 5 mph.
Monday
Sunny, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 44. East northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Portland TN
 36.54°N 86.53°W (Elev. 814 ft)
Last Update:
10:31 pm CDT Oct 15, 2026
Forecast Valid:
12am CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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