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About Alcatraz Island, CaliforniaAlcatraz, CA 7-Day Weather Forecast
Alcatraz Island, San Francisco Bay, CA 94133 (415) 561-4900Quick Weather Clicks
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Alcatraz Weather Forecast
Alcatraz, CA Weather Forecast Date: 902 PM PDT Sun Aug 23 2026
Weather forecast for Alcatraz, CA
Tonight Lo: 60°F Lo: 16°C |
Tonight... Mostly cloudy. Lows around 60. Northwest winds 5 to 10 mph. |
Mon Hi: 76°FHi: 24°C Lo: 59°F Lo: 15°C |
Monday... Mostly cloudy in the morning then becoming sunny. Highs in the 70s to lower 80s. West winds 5 to 15 mph. |
Tue Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Tuesday... Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s. West winds up to 5 mph increasing to 5 to 15 mph in the afternoon. |
| Wed Hi: 76°FHi: 24°C Lo: 59°F Lo: 15°C |
Wednesday... Mostly cloudy in the morning then becoming sunny. Highs in the mid 70s to lower 80s. |
| Thu Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Thursday... Partly cloudy. Highs in the upper 60s to lower 80s. Lows in the upper 50s. |
| Fri Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Friday... Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to upper 70s. |
| Sat Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Saturday... Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to upper 70s. |
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