National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Portland Municipal Airport (K1M5)

Lat: 36.59°NLon: 86.48°WElev: 818ft.

Fog

70°F

21°C

Humidity 94%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 68°F (20°C)
Visibility 0.15 mi
Last update 25 May 6:35 am CDT
Extended Forecast for

2 Miles ENE Portland TN

Dense Fog Advisory until May 25, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until May 25, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Memorial Day

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Slight Chance
    T-storms then
    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 79. Calm wind becoming south southeast around 5 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 11pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. South wind around 5 mph. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 82. South southwest wind around 5 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Memorial Day
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 79. Calm wind becoming east northeast around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 79. Calm wind becoming south southeast around 5 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and thunderstorms likely, mainly before 11pm, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. South wind around 5 mph. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 82. South southwest wind around 5 mph. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 66. Northeast wind around 5 mph becoming calm.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. East wind around 5 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Portland TN
 36.6°N 86.47°W (Elev. 692 ft)
Last Update:
5:26 am CDT May 25, 2026
Forecast Valid:
6am CDT May 25, 2026-6pm CDT May 31, 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