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

79°F

26°C

Humidity 74%
Wind Speed NW 5 G 12 mph
Barometer 30.03 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Aug 2:35 pm CDT
Extended Forecast for

Cottontown TN

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 91. Northwest wind around 5 mph becoming south.

    High: 91 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 71. South wind around 5 mph becoming north northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    Slight Chance
    T-storms then
    Heavy Rain

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 87. South southwest wind around 5 mph becoming northwest in the afternoon. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. North wind around 5 mph becoming calm.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 88 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 67. North northwest wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 89. Light northwest wind increasing to 5 to 10 mph in the afternoon.

    High: 89 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. North northwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 91. Northwest wind around 5 mph becoming south.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 71. South wind around 5 mph becoming north northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A 50 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 87. South southwest wind around 5 mph becoming northwest in the afternoon. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. North wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 67. North northwest wind around 5 mph becoming calm.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 89. Light northwest wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 87.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 67.
Tuesday
Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cottontown TN
 36.47°N 86.57°W (Elev. 801 ft)
Last Update:
1:31 pm CDT Aug 19, 2026
Forecast Valid:
2pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation