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Portland, OR Marine Weather Forecast

Tonight - 41°F
Dec 19, 2025
5 to 10 mph W
Light Rain
Rain. Mostly cloudy. Low around 41, with temperatures rising to around 43 overnight. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
Friday - 47°F
Dec 19, 2025
6 to 9 mph SW
Light Rain
Rain. Mostly cloudy. High near 47, with temperatures falling to around 45 in the afternoon. Southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night - 41°F
Dec 19, 2025
9 mph SSW
Light Rain
Rain. Cloudy. Low around 41, with temperatures rising to around 43 overnight. South southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday - 48°F
Dec 20, 2025
7 to 10 mph SSW
Light Rain
Rain. Mostly cloudy, with a high near 48. South southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 39°F
Dec 20, 2025
7 mph SSE
Light Rain Likely
Rain likely. Mostly cloudy, with a low around 39. South southeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Sunday - 49°F
Dec 21, 2025
7 mph SSE
Light Rain
Rain. Cloudy, with a high near 49. Chance of precipitation is 100%.
Sunday Night - 42°F
Dec 21, 2025
7 mph SSW
Light Rain
Rain. Cloudy, with a low around 42.
Monday - 49°F
Dec 22, 2025
7 to 10 mph S
Light Rain
Rain. Cloudy, with a high near 49.
Monday Night - 40°F
Dec 22, 2025
6 to 9 mph S
Light Rain
Rain. Mostly cloudy, with a low around 40.
Tuesday - 48°F
Dec 23, 2025
6 mph SE
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 48.
Tuesday Night - 37°F
Dec 23, 2025
3 mph ENE
Chance Light Rain
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 37.
Wednesday - 47°F
Dec 24, 2025
6 mph ESE
Chance Rain And Snow
A chance of rain and snow. Partly sunny, with a high near 47.
Wednesday Night - 37°F
Dec 24, 2025
6 mph E
Chance Light Rain
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 37.
Christmas Day - 47°F
Dec 25, 2025
7 mph ENE
Chance Rain And Snow
A chance of rain and snow before 5pm. Mostly cloudy, with a high near 47.

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