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.

Overcast

79°F

26°C

Humidity 94%
Wind Speed S 3 mph
Barometer 29.99 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 25 Jul 7:55 pm CDT
Extended Forecast for

7 Miles E Portland TN

  • Tonight

    Tonight: A chance of showers and thunderstorms between midnight and 4am, then a slight chance of showers. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers between 11am and 1pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. North northwest wind around 5 mph becoming calm.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 93 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76. South southwest wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. Southwest wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. North wind 5 to 10 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. North wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. North northeast wind around 5 mph.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms between midnight and 4am, then a slight chance of showers. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%.
Sunday
A slight chance of showers between 11am and 1pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. North northwest wind around 5 mph becoming calm.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 76. South southwest wind around 5 mph.
Tuesday
Sunny, with a high near 93. Southwest wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. North wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 88. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 67. North northeast wind around 5 mph.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 88.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles E Portland TN
 36.6°N 86.39°W (Elev. 761 ft)
Last Update:
1:31 pm CDT Jul 25, 2026
Forecast Valid:
8pm CDT Jul 25, 2026-6pm CDT Aug 1, 2026
 
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