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

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 4:35 am CDT
Extended Forecast for

Cottontown TN

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming east southeast around 5 mph.

    High: 85 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 66. Calm wind becoming southeast around 5 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly sunny, with a high near 88. South wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 72. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 72 °F

    Chance
    T-storms then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 82. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 65. North wind 5 to 10 mph.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. North wind around 5 mph.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. Calm wind becoming north around 5 mph in the afternoon.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming east southeast around 5 mph.
Tonight
Mostly clear, with a low around 66. Calm wind becoming southeast around 5 mph.
Sunday
A 50 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly sunny, with a high near 88. South wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 72. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm. High near 82. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 65. North wind 5 to 10 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cottontown TN
 36.47°N 86.62°W (Elev. 804 ft)
Last Update:
1:31 am CDT Jun 20, 2026
Forecast Valid:
4am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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