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.

Partly Cloudy

84°F

29°C

Humidity 79%
Wind Speed SE 6 mph
Barometer 30.09 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 6 Aug 5:15 pm CDT
Extended Forecast for

4 Miles E Cottontown TN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 5 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 91. Heat index values as high as 99. South wind around 5 mph becoming west southwest in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 4am, then a chance of showers after 5am. Partly cloudy, with a low around 72. South southwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 89. West southwest wind around 5 mph.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. Calm wind becoming south around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 92. Southwest wind around 5 mph.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. South wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 91. Heat index values as high as 99. South wind around 5 mph becoming west southwest in the afternoon.
Friday Night
A slight chance of showers and thunderstorms before 4am, then a chance of showers after 5am. Partly cloudy, with a low around 72. South southwest wind around 5 mph. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 89. West southwest wind around 5 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Calm wind.
Sunday
Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph.
Sunday Night
Mostly clear, with a low around 73. Calm wind becoming south around 5 mph.
Monday
Mostly sunny, with a high near 92. Southwest wind around 5 mph.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Cottontown TN
 36.49°N 86.51°W (Elev. 899 ft)
Last Update:
1:31 pm CDT Aug 6, 2026
Forecast Valid:
5pm CDT Aug 6, 2026-6pm CDT Aug 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation