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San Juan Island, WA
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7-Day Forecast
This Afternoon
Mostly Sunny
High: 58°
Mostly sunny with a steady temperature around 58. North northwest wind around 5 mph becoming calm.
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Tonight
Mostly Clear
Low: 44°
Mostly clear with a low around 44. South southwest wind around 6 mph becoming light and variable after midnight.
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Thursday
Sunny
High: 65°
Sunny with a high near 65. Calm wind becoming north around 6 mph in the afternoon.
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Thursday Night
Mostly Clear
Low: 48°
Mostly clear with a low around 48. Southwest wind 5 to 7 mph becoming calm after midnight.
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Friday
Slight Chance Showers
High: 65°
A 20% chance of showers after 11am. Mostly sunny with a high near 65. Light south wind becoming south southwest 5 to 10 mph in the afternoon.
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Friday Night
Chance Showers
Low: 47°
A 50% chance of showers. Mostly cloudy with a low around 47.
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Saturday
Slight Chance Showers then Mostly Sunny
High: 61°
A 20% chance of showers before 11am. Partly sunny with a high near 61.
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Saturday Night
Mostly Clear
Low: 44°
Mostly clear with a low around 44.
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Sunday
Sunny
High: 61°
Sunny with a high near 61.
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Sunday Night
Mostly Clear
Low: 46°
Mostly clear with a low around 46.
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Monday
Mostly Sunny
High: 63°
Mostly sunny with a high near 63.
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Monday Night
Slight Chance Showers
Low: 47°
A slight chance of showers. Partly cloudy with a low around 47.
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Tuesday
Slight Chance Showers then Mostly Sunny
High: 63°
A slight chance of showers. Mostly sunny with a high near 63.
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Source: National Weather Service
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