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 WNW Cottontown TN

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Calm wind becoming south around 5 mph after midnight.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 57. South southwest wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 57 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 67. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 57. South southwest wind 5 to 10 mph.

    Low: 57 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 74. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 51. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Mostly sunny, with a high near 63. West southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers. Partly cloudy, with a low around 41. West wind around 5 mph becoming north after midnight.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Calm wind becoming south around 5 mph after midnight.
Tuesday
Mostly cloudy, with a high near 64. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Cloudy, with a low around 57. South southwest wind 15 to 20 mph, with gusts as high as 25 mph.
Wednesday
Cloudy, with a high near 67. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 57. South southwest wind 5 to 10 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 74. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 51. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 63. West southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 41. West wind around 5 mph becoming north after midnight.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 54.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 34.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 25.
Monday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Cottontown TN
 36.5°N 86.65°W (Elev. 801 ft)
Last Update:
12:31 pm CST Feb 16, 2026
Forecast Valid:
5pm CST Feb 16, 2026-6pm CST Feb 23, 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