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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles ESE Cottontown TN

  • Overnight

    Overnight: Mostly cloudy, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 90. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. South southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 81. Calm wind becoming west northwest around 5 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. North northeast wind around 5 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. East northeast wind around 5 mph. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 64. Northeast wind around 5 mph becoming south southeast after midnight. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 82. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 64. South southwest wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 71. South wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 90. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. South southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 81. Calm wind becoming west northwest around 5 mph. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. North northeast wind around 5 mph. Chance of precipitation is 50%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. East northeast wind around 5 mph. Chance of precipitation is 60%.
Thursday Night
Showers and possibly a thunderstorm. Low around 64. Northeast wind around 5 mph becoming south southeast after midnight. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 82. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 64. South southwest wind 5 to 10 mph. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Memorial Day
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Cottontown TN
 36.47°N 86.54°W (Elev. 692 ft)
Last Update:
1:31 am CDT May 19, 2026
Forecast Valid:
3am CDT May 19, 2026-6pm CDT May 25, 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