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Cathlamet, WA Marine Weather Forecast

Overnight - 40°F
Dec 25, 2025
8 mph E
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 40. East wind around 8 mph. Chance of precipitation is 30%.
Christmas Day - 53°F
Dec 25, 2025
8 mph ESE
Light Rain
Rain. Mostly cloudy. High near 53, with temperatures falling to around 48 in the afternoon. East southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night - 41°F
Dec 25, 2025
6 mph ESE
Light Rain Likely
Rain likely before 4am, then rain showers. Mostly cloudy, with a low around 41. East southeast wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Friday - 48°F
Dec 26, 2025
3 to 14 mph SW
Rain Showers
Rain showers. Cloudy, with a high near 48. Southwest wind 3 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night - 38°F
Dec 26, 2025
8 to 14 mph W
Rain Showers
Rain showers. Mostly cloudy, with a low around 38. West wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday - 46°F
Dec 27, 2025
2 to 8 mph WNW
Chance Rain Showers
A chance of rain showers before 4pm. Mostly cloudy, with a high near 46. Chance of precipitation is 30%.
Saturday Night - 36°F
Dec 27, 2025
2 mph SSE
Patchy Fog
Patchy fog after 7pm. Mostly cloudy, with a low around 36.
Sunday - 48°F
Dec 28, 2025
3 mph E
Patchy Fog then Mostly Cloudy
Patchy fog before 11am. Mostly cloudy, with a high near 48.
Sunday Night - 36°F
Dec 28, 2025
5 mph E
Mostly Cloudy
Mostly cloudy, with a low around 36.
Monday - 51°F
Dec 29, 2025
5 mph E
Mostly Cloudy
Mostly cloudy, with a high near 51.
Monday Night - 37°F
Dec 29, 2025
5 mph E
Mostly Cloudy
Mostly cloudy, with a low around 37.
Tuesday - 52°F
Dec 30, 2025
5 mph ESE
Mostly Cloudy
Mostly cloudy, with a high near 52.
Tuesday Night - 39°F
Dec 30, 2025
5 mph ESE
Chance Light Rain
A chance of rain after 10pm. Mostly cloudy, with a low around 39.
Wednesday - 52°F
Dec 31, 2025
6 mph SE
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 52.

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