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

41°F

5°C

Humidity 100%
Wind Speed Calm
Barometer 30.38 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 19 Oct 1:35 am CDT
Extended Forecast for

3 Miles W Portland TN

  • Overnight

    Overnight: Patchy fog before 4am, then patchy fog after 5am. Otherwise, clear, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.

    High: 70 °F

    Patchy Fog
    then Sunny

  • Monday Night

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

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Northeast wind 5 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 43. Northeast wind around 5 mph.

    Low: 43 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Northeast wind around 5 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45. North northeast wind around 5 mph becoming calm.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Light north northeast wind increasing to 5 to 10 mph in the afternoon.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 45. North northeast wind around 5 mph.

    Low: 45 °F

    Clear

Detailed Forecast

Overnight
Patchy fog before 4am, then patchy fog after 5am. Otherwise, clear, with a low around 42. Calm wind.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 44. North northeast wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 72. Northeast wind 5 to 10 mph.
Tuesday Night
Clear, with a low around 43. Northeast wind around 5 mph.
Wednesday
Sunny, with a high near 73. Northeast wind around 5 mph.
Wednesday Night
Clear, with a low around 45. North northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 72. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Clear, with a low around 45. North northeast wind around 5 mph.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 47.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Portland TN
 36.58°N 86.56°W (Elev. 791 ft)
Last Update:
1:31 am CDT Oct 19, 2026
Forecast Valid:
1am CDT Oct 19, 2026-6pm CDT Oct 25, 2026
 
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Additional Resources

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