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Alcatraz, CA Weather Forecast
Alcatraz, CA Weather Forecast Dated: 1154 PM Wed Oct 28 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Wednesday, October 28, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
61°F 16°C
Partly Cloudy
Early-Evening
60°F 15°C
Partly Cloudy
Refreshing around 61°F 16°C, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the NNE to the WNW at 8 mph 14 km/h.
Thursday, October 29, 2026
Mid-Morning
58°F 15°C
Overcast
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
60°F 16°C
Overcast
Mildly cool near 63°F 17°C, overcast throughout the day, with steady humidity and steady pressure.
Friday, October 30, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
60°F 15°C
Cloudy
Early-Evening
59°F 15°C
Overcast
Comfortable at 60°F 15°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds switching from the SW to the WNW at 11 mph 18 km/h.
Saturday, October 31, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
60°F 16°C
Overcast
Early-Evening
58°F 15°C
Sunny
Cool with a high near 60°F 16°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds increasing from the W at 2 mph 3 km/h to WNW at 10 mph 15 km/h.
Sunday, November 1, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
60°F 16°C
Sunny
Refreshing around 62°F 17°C, sunny throughout the day, with increasing humidity and steady pressure. Winds swinging from the NNE to the N at 5 mph 9 km/h.
Monday, November 2, 2026
Mid-Morning
58°F 15°C
Cloudy
Mid-Afternoon
65°F 18°C
Cloudy
Early-Evening
62°F 17°C
Cloudy
Mildly cool near 65°F 18°C, cloudy through the afternoon, turning overcast this evening, with increasing humidity and steady pressure.
Tuesday, November 3, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
65°F 18°C
Overcast
Comfortable with temperatures reaching 68°F 20°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling.
Wednesday, November 4, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
64°F 18°C
Cloudy
Early-Evening
62°F 17°C
Partly Cloudy
Cool with a high near 64°F 18°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with increasing humidity and steady pressure.
Thursday, November 5, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
61°F 17°C
Partly Cloudy
Refreshing around 63°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the SSE to the WNW at 8 mph 13 km/h.
Friday, November 6, 2026
Mid-Morning
59°F 15°C
Scattered Showers
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
62°F 17°C
Partly Cloudy
Mildly cool near 63°F 17°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the W to the WSW at 6 mph 11 km/h.
Saturday, November 7, 2026
Mid-Morning
60°F 16°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Cloudy
Early-Evening
61°F 16°C
Partly Cloudy
Comfortable at 64°F 18°C, partly cloudy through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds switching from the NW to the NNW at 8 mph 13 km/h.
Sunday, November 8, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
69°F 20°C
Cloudy
Early-Evening
66°F 19°C
Partly Cloudy
Comfortable with temperatures reaching 69°F 20°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Monday, November 9, 2026
Mid-Morning
63°F 17°C
Cloudy
Mid-Afternoon
69°F 20°C
Overcast
Early-Evening
67°F 20°C
Overcast
Enjoyable around 69°F 20°C, overcast throughout the day, with steady humidity and steady pressure.
Tuesday, November 10, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
65°F 19°C
Light Showers
Early-Evening
64°F 18°C
Light Showers
Mildly cool near 65°F 19°C, clouds and showers taking over for the afternoon and evening, with steady humidity and steady pressure.
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