Alcatraz, CA Weather Forecast

Alcatraz Island, San Francisco Bay, CA 94133 (415) 561-4900
Feedback E-mail the Weather

Quick Weather Clicks

Alcatraz, CA Weather Forecast

Current Conditions

Settings
Alcatraz CA weather  - Partly Cloudy - 65°F
Partly Cloudy
65°F
Updated 3:28 pm
Feels Like 56°F
Humidity 62%
Wind W 7 mph
Barometer  29.85 in
Dew Point 52°F
Alcatraz CA weather  - Partly Cloudy - 18°C
Partly Cloudy
18°C
Updated 3:28 pm
Feels Like 13°C
Humidity 62%
Wind W 11 km/h
Barometer  101.1 kPa
Dew Point 11°C

Alcatraz Weather Forecast

REST OF TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Alcatraz, CA Weather - Rest Of Today Sunny Alcatraz, CA Weather - Tonight Partly Cloudy Alcatraz, CA Weather - Saturday Mostly Cloudy Alcatraz, CA Weather - Saturday Night Chance Of Showers Alcatraz, CA Weather - Sunday Patchy Fog Alcatraz, CA Weather - Sunday Night Mostly Clear Alcatraz, CA Weather - Monday Partly Cloudy Alcatraz, CA Weather - Monday Night Mostly Cloudy Alcatraz, CA Weather - Tuesday Chance Of Rain Alcatraz, CA Weather - Tuesday Night Chance Of Rain Alcatraz, CA Weather - Wednesday Chance Of Rain Alcatraz, CA Weather - Wednesday Night Patchy Fog
Sunny Partly Cloudy Mostly Cloudy Chance of Showers Patchy Fog Mostly Clear Partly Cloudy Mostly Cloudy Chance of Rain Chance of Rain Chance of Rain Patchy Fog
Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C Hi: 65°FHi: 18°C
Lo: 51°FLo: 11°C Hi: 65°FHi: 18°C
Lo: 46°FLo: 8°C Hi: 69°FHi: 21°C
Lo: 50°FLo: 10°C Hi: 65°FHi: 18°C
Lo: 50°FLo: 10°C
Hi: 65°FHi: 18°C
Lo: 50°FLo: 10°C
Hi: 65°FHi: 18°C
Lo: 50°FLo: 10°C
POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Fri Oct 30 2026 Alcatraz, CA Weather - WeatherWorld.com

Trending Headlines

Alcatraz Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Alcatraz Quick Facts

National Two Day Weather Forecast


E-mail the Alcatraz Weather Forecast

Voice your opinion or tell us about page issues...

Alcatraz Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 1217 PM PDT Fri Oct 30 2026

Key Messages

Updated at 1213 PM PDT Fri Oct 30 2026
  • Minor to moderate coastal flooding at high tide for Bayshore and Pacific Coast locations through the weekend
  • Seasonal to slightly below seasonal temperatures through the extended forecast
  • Potential for rain Saturday and again next week

Aviation

... (18Z TAFS) Issued at 1042 AM PDT Fri Oct 30 2026

VFR through the TAF cycle with some borderline VFR-MVFR ceilings possible Saturday morning at the Monterey Bay terminals. Gentle onshore breezes prevail t...