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

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 25 Jul 3:55 am CDT
Extended Forecast for

2 Miles ESE Portland TN

  • Overnight

    Overnight: A 30 percent chance of showers. Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 89 °F

    Areas Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog before midnight, then patchy fog after 1am. Otherwise, partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Patchy Fog

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Monday Night

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

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Southwest wind around 10 mph becoming west northwest in the afternoon.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. North wind 5 to 10 mph.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 67. Calm wind.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Sunday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Patchy fog before midnight, then patchy fog after 1am. Otherwise, partly cloudy, with a low around 72. Calm wind.
Monday
A 20 percent chance of showers before 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 76. South southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 94. Southwest wind around 10 mph becoming west northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 71. North wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 70.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Portland TN
 36.58°N 86.47°W (Elev. 801 ft)
Last Update:
1:31 am CDT Jul 25, 2026
Forecast Valid:
4am CDT Jul 25, 2026-6pm CDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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