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Island County, WA Weather Forecast
Island County, WA Weather Forecast Date: 236 AM PDT Sat Sep 26 2026
The area/counties/county of: Island County, including the cities of: Oak Harbor and Coupeville.or toggle through each period.
Today... Partly sunny in the morning then becoming mostly sunny. Highs in the upper 50s to mid 60s. South wind to 10 mph becoming northwest in the afternoon.
Tonight... Mostly cloudy. Lows in the mid 40s to lower 50s. Northwest wind to 10 mph increasing to 10 to 15 mph after midnight.
Sunday... Partly sunny in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 50s to mid 60s. Northwest wind 10 to 15 mph.
Sunday Night... Mostly clear. Lows in the mid to upper 40s. Northwest wind around 10 mph becoming south to 10 mph after midnight.
Monday... Partly sunny. Highs in the 60s. South wind to 10 mph.
Monday Night... Mostly cloudy. A slight chance of rain after midnight. Lows in the lower 50s.
Tuesday... Windy. Rain likely. Highs in the lower to mid 60s.
Tuesday Night... Mostly cloudy with rain likely in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 50s.
Wednesday... Partly sunny. Highs in the lower to mid 60s.
Wednesday Night... Mostly cloudy. A slight chance of rain after midnight. Lows near 50.
Thursday... Partly sunny. A chance of rain in the morning, then a slight chance of rain in the afternoon. Highs near 60.
Thursday Night... Partly cloudy with a slight chance of rain. Lows in the upper 40s.
POP = Probability of Precipitation
Island County Radar Loop
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