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About Alcatraz Island, CaliforniaAlcatraz, CA 7-Day Night Weather Forecast
Alcatraz Island, San Francisco Bay, CA 94133 (415) 561-4900Quick Weather Clicks
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Alcatraz, CA Weather Forecast
Alcatraz, CA Weather Forecast Date: 302 PM PDT Sat Aug 22 2026
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Rest of Today... Sunny. Highs in the 70s. West winds 10 to 20 mph.
Tonight... Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 50s. West winds 10 to 20 mph.
Sunday... Mostly cloudy. Highs in the mid 70s to lower 80s. West winds 5 to 15 mph.
Sunday Night... Mostly cloudy. Lows in the upper 50s. West winds 5 to 15 mph.
Monday... Mostly cloudy in the morning then becoming sunny. Highs in the 70s. West winds up to 5 mph increasing to 5 to 15 mph in the afternoon.
Monday Night... Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 50s.
Tuesday... Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s.
Tuesday Night... Partly cloudy. Lows in the upper 50s. Highs in the upper 60s to lower 80s.
Wednesday... Partly cloudy. Lows in the upper 50s. Highs in the upper 60s to lower 80s.
Wednesday Night... Mostly clear. Lows around 60.
Thursday... Partly cloudy. Highs in the upper 60s to lower 80s. Lows around 60.
POP = Probability of Precipitation
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