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.

Overcast

72°F

22°C

Humidity 100%
Wind Speed E 5 mph
Barometer 30.03 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 11 Jul 8:35 pm CDT
Extended Forecast for

2 Miles S Portland TN

Flood Watch July 11, 08:53pm until July 12, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 11, 08:53pm until July 12, 06:00pm

    NOW until 6:00pm Sun

    Flood Watch

  • Tonight

    Low: 70 °F

    T-storms
    Likely then
    Showers
    Likely

  • Sunday

    Sunday: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 81. South wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Increasing clouds, with a low around 69. North northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 82. North northeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 82 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 69. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. East wind around 5 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. East southeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 81. South wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Increasing clouds, with a low around 69. North northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 82. North northeast wind 5 to 10 mph. Chance of precipitation is 70%.
Monday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 69. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. East wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 70. East southeast wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 72. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Portland TN
 36.56°N 86.5°W (Elev. 801 ft)
Last Update:
6:46 pm CDT Jul 11, 2026
Forecast Valid:
8pm CDT Jul 11, 2026-6pm CDT Jul 18, 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