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Hazardous Weather Conditions

Current conditions at

Portland Municipal Airport (K1M5)

Lat: 36.59°NLon: 86.48°WElev: 818ft.

Fair

86°F

30°C

Humidity 75%
Wind Speed Vrbl 5 mph
Barometer 30.06 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 30 Jul 10:55 am CDT
Extended Forecast for

Portland TN

Heat Advisory July 30, 08:00pm until July 31, 08:00pm
Extreme Heat Warning July 30, 11:21am until July 30, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning July 30, 11:21am until July 30, 08:00pm

    NOW until 8:00pm Wed

    Extreme Heat Warning

  • Today

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. North northeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. North wind around 5 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North northeast wind 5 to 10 mph.

    High: 81 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. North northeast wind 5 to 10 mph.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Northeast wind around 10 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. North northeast wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 101. North northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 74. North northeast wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. North wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North northeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 65. North northeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 83. Northeast wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 66. North northeast wind around 5 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. East northeast wind around 5 mph becoming southeast in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland TN
 36.58°N 86.53°W (Elev. 810 ft)
Last Update:
10:54 am CDT Jul 30, 2025
Forecast Valid:
11am CDT Jul 30, 2025-6pm CDT Aug 5, 2025
 
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