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Lummi Island, WA Marine Weather Forecast

This Afternoon - 51°F
Mar 04, 2026
7 mph WSW
Chance Light Rain
A chance of rain. Partly sunny. High near 51, with temperatures falling to around 49 in the afternoon. West southwest wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Tonight - 44°F
Mar 04, 2026
10 mph WSW
Light Rain Likely
Rain likely. Mostly cloudy, with a low around 44. West southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Thursday - 49°F
Mar 05, 2026
7 to 10 mph SW
Light Rain Likely
Rain likely. Mostly cloudy, with a high near 49. Southwest wind 7 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night - 43°F
Mar 05, 2026
7 mph SSE
Light Rain
Rain. Mostly cloudy, with a low around 43. South southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday - 49°F
Mar 06, 2026
7 mph SSE
Light Rain
Rain. Cloudy, with a high near 49. South southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night - 46°F
Mar 06, 2026
6 to 12 mph SSE
Light Rain
Rain. Cloudy, with a low around 46. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday - 51°F
Mar 07, 2026
12 to 15 mph S
Light Rain Likely
Rain likely. Cloudy, with a high near 51.
Saturday Night - 47°F
Mar 07, 2026
12 to 17 mph S
Light Rain
Rain. Cloudy, with a low around 47.
Sunday - 51°F
Mar 08, 2026
17 to 24 mph S
Light Rain
Rain. Cloudy, with a high near 51.
Sunday Night - 40°F
Mar 08, 2026
17 to 23 mph WSW
Light Rain
Rain. Mostly cloudy, with a low around 40.
Monday - 46°F
Mar 09, 2026
17 mph W
Light Rain
Rain. Mostly cloudy, with a high near 46.
Monday Night - 37°F
Mar 09, 2026
8 to 16 mph WSW
Light Rain Likely then Rain And Snow Likely
Rain likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 37.
Tuesday - 46°F
Mar 10, 2026
9 mph SSW
Rain And Snow Likely
Rain and snow likely. Mostly cloudy, with a high near 46.
Tuesday Night - 37°F
Mar 10, 2026
7 to 12 mph S
Rain And Snow
A chance of rain before 11pm, then rain and snow. Mostly cloudy, with a low around 37.

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