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.

Mostly Cloudy

75°F

24°C

Humidity 94%
Wind Speed SW 9 G 16 mph
Barometer 29.74 in
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 2 Aug 11:55 am CDT
Extended Forecast for

3 Miles E Cottontown TN

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 81. Southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 67. Northwest wind 5 to 10 mph.

    Low: 67 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 85. North wind 5 to 10 mph.

    High: 85 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. North northeast wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 88. North northeast wind around 5 mph.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.

    Low: 69 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.

    High: 89 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 70. East wind around 5 mph becoming calm.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. South wind around 5 mph becoming west southwest in the afternoon.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 81. Southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 67. Northwest wind 5 to 10 mph.
Monday
Partly sunny, with a high near 85. North wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 68. North northeast wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 88. North northeast wind around 5 mph.
Tuesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.
Wednesday Night
Partly cloudy, with a low around 70. East wind around 5 mph becoming calm.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. South wind around 5 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 73.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Cottontown TN
 36.47°N 86.54°W (Elev. 692 ft)
Last Update:
11:01 am CDT Aug 2, 2026
Forecast Valid:
12pm CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation