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

  • Overnight

    Overnight: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 67. Light and variable wind becoming north northwest 5 to 10 mph in the morning.

    High: 67 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. North northeast wind around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62. North northeast wind 5 to 10 mph.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40. North northwest wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Calm wind becoming west around 5 mph in the morning.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. South wind 5 to 10 mph.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 46. Calm wind.
Friday
Increasing clouds, with a high near 67. Light and variable wind becoming north northwest 5 to 10 mph in the morning.
Friday Night
Mostly cloudy, with a low around 45. North northeast wind around 5 mph.
Saturday
Partly sunny, with a high near 62. North northeast wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 40. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 66. Calm wind becoming west around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 49. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 57. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 72. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Portland TN
 36.56°N 86.5°W (Elev. 801 ft)
Last Update:
5:41 pm CDT Apr 30, 2026
Forecast Valid:
12am CDT May 1, 2026-6pm CDT May 7, 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