Weather World
About Alcatraz Island, CaliforniaAlcatraz, CA 14 Day Weather
Alcatraz Island, San Francisco Bay, CA 94133 (415) 561-4900Quick Weather Clicks
Settings
Sun & Moon
Alcatraz, CA Weather Forecast
Alcatraz, CA Weather Forecast Dated: 752 AM Sat Aug 22 2026 (Alcatraz Time)
Sat, 22nd Lo: 14°C57°F Hi: 23°C73°F |
Sunny Saturday, temperatures as high as 73°F23°C, low temperature around 57°F14°C, chance of rain 13%, wind out of the W 13 mph21 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 79%. |
Sun, 23rd Lo: 15°C58°F Hi: 18°C65°F |
Overcast Sunday, temperatures as high as 65°F18°C, low temperature around 58°F15°C, chance of rain 23%, wind out of the WSW 13 mph21 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 82%. |
| Mon, 24th Lo: 14°C58°F Hi: 18°C64°F |
Sunny Monday, temperatures as high as 64°F18°C, low temperature around 58°F14°C, chance of rain 18%, wind out of the WSW 15 mph24 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 83%. |
| Tue, 25th Lo: 14°C58°F Hi: 17°C63°F |
Sunny Tuesday, temperatures as high as 63°F17°C, low temperature around 58°F14°C, chance of rain 14%, wind out of the W 15 mph24 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 81%. |
| Wed, 26th Lo: 14°C58°F Hi: 18°C65°F |
Sunny Wednesday, temperatures as high as 65°F18°C, low temperature around 58°F14°C, chance of rain 11%, wind out of the WSW 13 mph20 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 80%. |
| Thu, 27th Lo: 15°C59°F Hi: 19°C66°F |
Sunny Thursday, temperatures as high as 66°F19°C, low temperature around 59°F15°C, chance of rain 8%, wind out of the W 14 mph23 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 78%. |
| Fri, 28th Lo: 15°C59°F Hi: 18°C64°F |
Overcast Friday, temperatures as high as 64°F18°C, low temperature around 59°F15°C, chance of rain 22%, wind out of the WSW 12 mph19 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 78%. |
| Sat, 29th Lo: 15°C59°F Hi: 18°C64°F |
Sunny Saturday, temperatures as high as 64°F18°C, low temperature around 59°F15°C, chance of rain 10%, wind out of the WSW 12 mph19 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 77%. |
| Sun, 30th Lo: 15°C58°F Hi: 17°C63°F |
Sunny Sunday, temperatures as high as 63°F17°C, low temperature around 58°F15°C, chance of rain 9%, wind out of the WSW 12 mph20 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 79%. |
| Mon, 31st Lo: 15°C59°F Hi: 18°C64°F |
Sunny Monday, temperatures as high as 64°F18°C, low temperature around 59°F15°C, chance of rain 8%, wind out of the WSW 15 mph24 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 78%. |
| Tue, 1st Lo: 14°C58°F Hi: 17°C62°F |
Sunny Tuesday, temperatures as high as 62°F17°C, low temperature around 58°F14°C, chance of rain 12%, wind out of the WSW 18 mph29 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 82%. |
| Wed, 2nd Lo: 14°C58°F Hi: 17°C63°F |
Sunny Wednesday, temperatures as high as 63°F17°C, low temperature around 58°F14°C, chance of rain 13%, wind out of the WSW 17 mph27 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 79%. |
| Thu, 3rd Lo: 15°C58°F Hi: 17°C62°F |
Sunny Thursday, temperatures as high as 62°F17°C, low temperature around 58°F15°C, chance of rain 11%, wind out of the W 16 mph26 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 81%. |
| Fri, 4th Lo: 14°C58°F Hi: 18°C65°F |
Sunny Friday, temperatures as high as 65°F18°C, low temperature around 58°F14°C, chance of rain 9%, wind out of the W 17 mph28 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 77%. |
Alcatraz, CA Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...