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

28°F

-2°C

Humidity 74%
Wind Speed S 5 mph
Barometer 30.40 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 28 Nov 7:55 pm CST
Extended Forecast for

3 Miles SSE Portland TN

  • Tonight

    Tonight: Partly cloudy, with a low around 25. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 47. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 47 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, mainly after midnight. Low around 34. South wind around 15 mph becoming west southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Showers
    Likely then
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 42. West southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 42 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24. North northeast wind around 5 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after noon. Partly sunny, with a high near 43. East northeast wind 5 to 10 mph.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers. Cloudy, with a low around 31. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%.

    Low: 31 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A chance of rain and snow showers, mainly before noon. Mostly cloudy, with a high near 37. North northwest wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 37 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. North northwest wind around 5 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 25. Calm wind becoming east southeast around 5 mph after midnight.
Saturday
A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 47. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Showers, mainly after midnight. Low around 34. South wind around 15 mph becoming west southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A 30 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 42. West southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 24. North northeast wind around 5 mph.
Monday
A 20 percent chance of showers after noon. Partly sunny, with a high near 43. East northeast wind 5 to 10 mph.
Monday Night
A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers. Cloudy, with a low around 31. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%.
Tuesday
A chance of rain and snow showers, mainly before noon. Mostly cloudy, with a high near 37. North northwest wind 5 to 10 mph. Chance of precipitation is 50%.
Tuesday Night
Mostly cloudy, with a low around 23. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 42.
Thursday Night
A chance of freezing rain. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 46.
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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:
7:06 pm CST Nov 28, 2025
Forecast Valid:
8pm CST Nov 28, 2025-6pm CST Dec 5, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation