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Portland, ME Marine Weather Forecast

Station CASM1 - 8418150 - Portland, ME

June 4, 2025 1:18 am EDT
Location: 43.656N 70.246W
Wind Direction: SSE (150°)
Wind Speed: 1.0 knots
Wind Gust: 1.9 knots
Atmospheric Pressure: 30.12 in (1019.9 mb)
Water Temperature: 52.9°F (11.6°C)


Overnight - 52°F
Jun 04, 2025
5 mph S
Partly Cloudy
Partly cloudy, with a low around 52. South wind around 5 mph.
Wednesday - 60°F
Jun 04, 2025
5 to 10 mph S
Mostly Sunny
Mostly sunny, with a high near 60. South wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday Night - 57°F
Jun 04, 2025
5 to 15 mph S
Mostly Clear
Mostly clear, with a low around 57. South wind 5 to 15 mph.
Thursday - 67°F
Jun 05, 2025
5 to 10 mph S
Mostly Sunny then Patchy Fog
Patchy fog after 5pm. Mostly sunny, with a high near 67. South wind 5 to 10 mph.
Thursday Night - 59°F
Jun 05, 2025
5 to 10 mph W
Patchy Fog
Patchy fog before 8pm, then patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West wind 5 to 10 mph.
Friday - 66°F
Jun 06, 2025
5 mph NE
Patchy Fog
Patchy fog and a slight chance of rain showers before 2pm, then a chance of rain showers and patchy fog. Partly sunny, with a high near 66. Chance of precipitation is 50%.
Friday Night - 57°F
Jun 06, 2025
5 mph S
Patchy Fog
A chance of rain showers and patchy fog before 8pm, then patchy fog and showers and thunderstorms likely. Cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday - 61°F
Jun 07, 2025
5 to 10 mph SE
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 61. Chance of precipitation is 70%.
Saturday Night - 56°F
Jun 07, 2025
5 to 10 mph SW
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Sunday - 65°F
Jun 08, 2025
10 mph W
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 65. Chance of precipitation is 40%.
Sunday Night - 55°F
Jun 08, 2025
5 to 10 mph SW
Slight Chance Rain Showers then Mostly Cloudy
A slight chance of rain showers before 8pm. Mostly cloudy, with a low around 55.
Monday - 61°F
Jun 09, 2025
5 to 10 mph S
Mostly Cloudy
Mostly cloudy, with a high near 61.
Monday Night - 55°F
Jun 09, 2025
10 mph SE
Chance Rain Showers
A chance of rain showers after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Tuesday - 60°F
Jun 10, 2025
10 mph SE
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 60.

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