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Aleck Bay, WA - Lopez Island Marine Weather Forecast

Station SISW1 - Smith Island, WA

December 27, 2025 4:30 pm PST
Location: 48.321N 122.831W
Wind Direction: NE (50°)
Wind Speed: 9.9 knots
Wind Gust: 12.1 knots
Atmospheric Pressure: 30.42 in (1030.0 mb)
Air Temperature: 39.7°F (4.3°C)
Dew Point: 26.1°F (-3.3°C)


Tonight - 36°F
Dec 27, 2025
2 mph ESE
Mostly Cloudy
Mostly cloudy. Low around 36, with temperatures rising to around 38 overnight. East southeast wind around 2 mph.
Sunday - 44°F
Dec 28, 2025
3 to 7 mph SE
Mostly Cloudy
Mostly cloudy. High near 44, with temperatures falling to around 42 in the afternoon. Southeast wind 3 to 7 mph.
Sunday Night - 39°F
Dec 28, 2025
3 mph E
Mostly Cloudy
Mostly cloudy, with a low around 39. East wind around 3 mph.
Monday - 46°F
Dec 29, 2025
3 mph NNE
Mostly Cloudy
Mostly cloudy, with a high near 46. North northeast wind around 3 mph.
Monday Night - 38°F
Dec 29, 2025
2 mph N
Mostly Cloudy then Areas Of Fog
Areas of fog after midnight. Mostly cloudy, with a low around 38. North wind around 2 mph.
Tuesday - 46°F
Dec 30, 2025
2 mph NE
Patchy Fog then Mostly Cloudy
Patchy fog before 11am. Mostly cloudy, with a high near 46.
Tuesday Night - 40°F
Dec 30, 2025
1 mph E
Mostly Cloudy then Slight Chance Light Rain
A slight chance of rain after 4am. Mostly cloudy, with a low around 40.
Wednesday - 47°F
Dec 31, 2025
3 mph ESE
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a high near 47.
Wednesday Night - 41°F
Dec 31, 2025
1 to 5 mph SE
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 41.
New Year's Day - 49°F
Jan 01, 2026
5 to 9 mph SE
Light Rain Likely
Rain likely. Cloudy, with a high near 49.
Thursday Night - 42°F
Jan 01, 2026
8 mph SSE
Light Rain Likely
Rain likely. Mostly cloudy, with a low around 42.
Friday - 48°F
Jan 02, 2026
9 mph SSW
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 48.
Friday Night - 40°F
Jan 02, 2026
7 mph SSW
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 40.
Saturday - 46°F
Jan 03, 2026
6 to 10 mph SSE
Chance Light Rain
A chance of rain before 5pm. Mostly cloudy, with a high near 46.

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