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

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.88 in
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Last update 18 Jun 11:55 pm CDT
Extended Forecast for

5 Miles NW Red Boiling Springs TN

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms before 1am. Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 65. Calm wind becoming north around 5 mph.

    Low: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 81. North northwest wind around 5 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Sunny, with a high near 85. Calm wind.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 87. Light south southeast wind becoming south southwest 5 to 10 mph in the morning. Chance of precipitation is 60%.

    High: 87 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 72. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 72 °F

    Chance
    T-storms then
    Showers

  • Monday

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

    High: 82 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms before 1am. Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 65. Calm wind becoming north around 5 mph.
Juneteenth
Mostly sunny, with a high near 81. North northwest wind around 5 mph.
Friday Night
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 60. Calm wind.
Saturday
Sunny, with a high near 85. Calm wind.
Saturday Night
Mostly clear, with a low around 65. Calm wind.
Sunday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 87. Light south southeast wind becoming south southwest 5 to 10 mph in the morning. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 72. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Monday
Showers and possibly a thunderstorm. High near 82. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Red Boiling Springs TN
 36.59°N 85.92°W (Elev. 820 ft)
Last Update:
10:31 pm CDT Jun 18, 2026
Forecast Valid:
12am CDT Jun 19, 2026-6pm CDT Jun 25, 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