Isaias to Bring Tropical Impacts Across to the East Coast

Isaias is forecast to make landfall tonight in the Carolinas with dangerous storm surge, flash flooding, damaging winds, and isolated tropical tornadoes. Isaias may strengthen briefly prior to landfall, but the impacts will be the same regardless of the categorical definition. Isaias impacts will be felt all along the East Coast as Isaias moves northward through mid-week. Read More >

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Mostly Cloudy

88°F

31°C

Humidity 42%
Wind Speed W 13 G 21 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 3 Aug 1:51 pm EDT
Extended Forecast for

Portland ME

Tropical Storm Watch until further notice
Click here for hazard details and duration
Tropical Storm Watch until further notice
  •  
    Tropical Storm Watch until further notice

    NOW until further notice

    Tropical Storm Watch

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 88. West wind around 15 mph.

    Sunny

    High: 88 °F

  • Tonight

    Tonight: Increasing clouds, with a low around 68. West wind around 5 mph becoming calm  in the evening.

    Increasing
    Clouds

    Low: 68 °F

  • Tuesday

    Tuesday: A chance of showers between 9am and 4pm, then a chance of showers and thunderstorms after 4pm.  Mostly cloudy, with a high near 76. East wind around 5 mph.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers then
    Chance
    T-storms

    High: 76 °F

  • Tuesday
    Night

    Tuesday Night: Tropical storm conditions possible. Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Some of the storms could produce heavy rainfall.  Low around 70. Chance of precipitation is 80%.

    Tropical
    Storm
    Conditions
    Possible

    Low: 70 °F

  • Wednesday

    Wednesday: Showers likely, mainly before 7am. The rain could be heavy at times.  Mostly sunny, with a high near 79. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Heavy Rain
    then Chance
    Showers

    High: 79 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 64.

    Mostly Clear

    Low: 64 °F

  • Thursday

    Thursday: Sunny, with a high near 75.

    Sunny

    High: 75 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 63.

    Mostly Clear

    Low: 63 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 88. West wind around 15 mph.
Tonight
Increasing clouds, with a low around 68. West wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers between 9am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 76. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Tropical storm conditions possible. Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Some of the storms could produce heavy rainfall. Low around 70. Chance of precipitation is 80%.
Wednesday
Showers likely, mainly before 7am. The rain could be heavy at times. Mostly sunny, with a high near 79. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 77.
Click Map For Forecast
Point Forecast:
Portland ME
 43.66°N 70.27°W (Elev. 7 ft)
12:35 pm EDT Aug 3, 2020
2pm EDT Aug 3, 2020-6pm EDT Aug 9, 2020
 
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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