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

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Fair

85°F

29°C

Humidity 53%
Wind Speed S 8 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 6 Aug 4:51 pm EDT
Extended Forecast for

Bustins Island ME

Heat Advisory August 7, 11:00am until August 7, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 65. South wind 5 to 10 mph becoming light southwest in the evening.

    Low: 65 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 77. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog. Otherwise, partly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Patchy Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 76. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 60%.

    High: 76 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 65. South wind 5 to 10 mph becoming light southwest in the evening.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 77. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 76. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Tuesday Night
A chance of thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bustins Island ME
 43.79°N 70.08°W (Elev. 0 ft)
Last Update:
2:17 pm EDT Aug 6, 2026
Forecast Valid:
5pm EDT Aug 6, 2026-6pm EDT Aug 13, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation