Weather Alerts
Alcatraz Island, CA Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
| Tue Aug 3 |  | Partly Cloudy Close Hourly | -º / 54º | 12% | WSW 16 mph | 91% |
| 8pm |  | Partly Cloudy | 58º | 2% | W 16 mph | 86% |
| 9pm | | Partly Cloudy | 56º | 3% | W 15 mph | 91% |
| 10pm | | Partly Cloudy | 55º | 4% | W 14 mph | 94% |
| 11pm | | Partly Cloudy | 56º | 4% | WSW 13 mph | 91% |
| Wed Aug 4 | | Partly Cloudy View Hourly | 65º / 57º | 10% | W 19 mph | 82% |
| 12am | | Partly Cloudy | 56º | 6% | WSW 12 mph | 92% |
| 1am |  | Mostly Cloudy | 56º | 6% | WSW 11 mph | 92% |
| 2am | | Mostly Cloudy | 55º | 11% | WSW 11 mph | 93% |
| 3am | | Mostly Cloudy | 56º | 12% | WSW 11 mph | 92% |
| 4am | | Mostly Cloudy | 55º | 13% | WSW 10 mph | 91% |
| 5am | | Mostly Cloudy | 55º | 11% | WSW 10 mph | 91% |
| 6am | | Mostly Cloudy | 55º | 13% | WSW 10 mph | 91% |
| 7am |  | Mostly Cloudy | 55º | 10% | WSW 10 mph | 91% |
| 8am | | Mostly Cloudy | 56º | 9% | WSW 9 mph | 90% |
| 9am | | Mostly Cloudy | 57º | 10% | WSW 10 mph | 89% |
| 10am | | Partly Cloudy | 58º | 11% | WSW 11 mph | 88% |
| 11am | | Partly Cloudy | 59º | 8% | WSW 13 mph | 85% |
| 12pm | | Partly Cloudy | 60º | 5% | WSW 14 mph | 82% |
| 1pm | | Partly Cloudy | 61º | 4% | W 16 mph | 78% |
| 2pm |  | Mostly Sunny | 62º | 4% | W 17 mph | 77% |
| 3pm | | Mostly Sunny | 63º | 4% | W 18 mph | 74% |
| 4pm | | Mostly Sunny | 64º | 4% | W 19 mph | 73% |
| 5pm | | Mostly Sunny | 63º | 4% | W 18 mph | 75% |
| 6pm | | Partly Cloudy | 63º | 5% | W 18 mph | 76% |
| 7pm | | Partly Cloudy | 62º | 7% | W 17 mph | 78% |
| 8pm | | Partly Cloudy | 61º | 8% | W 16 mph | 81% |
| 9pm | | Partly Cloudy | 60º | 9% | W 15 mph | 84% |
| 10pm | | Mostly Cloudy | 59º | 10% | W 14 mph | 85% |
| 11pm | | Mostly Cloudy | 59º | 17% | W 13 mph | 86% |
| Thu Aug 5 | | AM Clouds/PM Sun View Hourly | 68º / 58º | 18% | W 18 mph | 77% |
| 12am | | Mostly Cloudy | 59º | 19% | W 12 mph | 86% |
| 1am | | Mostly Cloudy | 59º | 19% | W 12 mph | 87% |
| 2am | | Mostly Cloudy | 59º | 13% | W 12 mph | 87% |
| 3am | | Mostly Cloudy | 58º | 14% | W 12 mph | 87% |
| 4am |  | Cloudy | 59º | 15% | W 12 mph | 86% |
| 5am | | Cloudy | 58º | 17% | W 11 mph | 87% |
| 6am | | Cloudy | 59º | 16% | W 11 mph | 86% |
| 7am | | Cloudy | 59º | 18% | W 12 mph | 86% |
| 8am | | Cloudy | 60º | 14% | W 11 mph | 86% |
| 9am | | Mostly Cloudy | 60º | 12% | W 12 mph | 85% |
| 10am | | Mostly Cloudy | 61º | 8% | W 12 mph | 83% |
| 11am | | Partly Cloudy | 62º | 6% | W 12 mph | 79% |
| 12pm | | Partly Cloudy | 64º | 5% | W 13 mph | 76% |
| 1pm | | Partly Cloudy | 65º | 4% | W 15 mph | 74% |
| 2pm | | Mostly Sunny | 66º | 4% | W 16 mph | 72% |
| 3pm | | Mostly Sunny | 67º | 4% | W 17 mph | 70% |
| 4pm |  | Sunny | 68º | 4% | W 18 mph | 68% |
| 5pm | | Sunny | 67º | 4% | W 18 mph | 69% |
| 6pm | | Sunny | 66º | 4% | W 17 mph | 70% |
| 7pm | | Sunny | 65º | 5% | W 16 mph | 73% |
| Fri Aug 6 | | Partly Cloudy | 74º / 56º | 8% | WNW 15 mph | 72% |
| Sat Aug 7 | | Mostly Sunny | 69º / 56º | 8% | WSW 16 mph | 76% |
| Sun Aug 8 | | Partly Cloudy | 67º / 56º | 8% | WSW 17 mph | 79% |
| Mon Aug 9 | | Partly Cloudy | 67º / 55º | 7% | WSW 16 mph | 75% |
| Tue Aug 10 | | Mostly Sunny | 67º / 55º | 7% | W 16 mph | 76% |
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Buoy Data
For Alcatraz Island, CA -
Wind Forecast
In Alcatraz Island, CA -
Radar
In Alcatraz Island, CA -
Marine Forecast
In Alcatraz Island, CA
Weather Radar for Alcatraz Island, CA See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for Alcatraz Island, CA
Tonight
Low : 54ºF
WSW wind 13 to 21 kt, with gusts as high as 30 kt. Increasing clouds.
WSW wind 13 to 21 kt, with gusts as high as 30 kt. Increasing clouds.
Wednesday
High : 58ºF
WSW wind 14 to 20 kt, with gusts as high as 28 kt. Mostly cloudy, then gradually becoming sunny.
WSW wind 14 to 20 kt, with gusts as high as 28 kt. Mostly cloudy, then gradually becoming sunny.
Wednesday Night
Low : 56ºF
WSW wind 13 to 20 kt, with gusts as high as 27 kt. Mostly cloudy.
WSW wind 13 to 20 kt, with gusts as high as 27 kt. Mostly cloudy.
Thursday
High : 59ºF
WSW wind 12 to 18 kt, with gusts as high as 26 kt. Mostly cloudy, then gradually becoming sunny.
WSW wind 12 to 18 kt, with gusts as high as 26 kt. Mostly cloudy, then gradually becoming sunny.
Thursday Night
Low : 58ºF
W wind 12 to 17 kt becoming variable and less than 5 kt. Winds could gust as high as 24 kt. Partly cloudy.
W wind 12 to 17 kt becoming variable and less than 5 kt. Winds could gust as high as 24 kt. Partly cloudy.
Friday
High : 62ºF
Variable winds less than 5 kt becoming WSW 10 to 15 kt in the afternoon. Sunny.
Variable winds less than 5 kt becoming WSW 10 to 15 kt in the afternoon. Sunny.
Friday Night
Low : 57ºF
W wind 7 to 14 kt, with gusts as high as 20 kt. Partly cloudy.
W wind 7 to 14 kt, with gusts as high as 20 kt. Partly cloudy.
Saturday
High : 59ºF
SW wind 6 to 10 kt. Mostly sunny.
SW wind 6 to 10 kt. Mostly sunny.
Saturday Night
Low : 56ºF
SW wind 8 to 11 kt. Partly cloudy.
SW wind 8 to 11 kt. Partly cloudy.
NOAA Buoy Data Near Alcatraz Island, CA See Map
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Wind Speed Forecast for Alcatraz Island, CA
| Tuesday | Wednesday | Thursday | ||||||||||
| Wind Speed (MPH) | 16 | 12 | 10 | 9 | 14 | 19 | 16 | 12 | 12 | 11 | 13 | 18 |
| 8pm | 12am | 4am | 8am | 12pm | 4pm | 8pm | 12am | 4am | 8am | 12pm | 4pm | |
| MPH | 16 | 12 | 10 | 9 | 14 | 19 | 16 | 12 | 12 | 11 | 13 | 18 |
| DIR | W | WSW | WSW | WSW | WSW | W | W | W | W | W | W | W |
Current Weather Conditions In Alcatraz Island, CA
As Of: 24 minutes ago
- 58ºF
- 55ºF
- 16mph
- 0º (W)
- 24mph
- Partly Cloudy
- 8mi
- 29.94"
- 86%
- 0ºF
The weather right now in Alcatraz Island, CA is Partly Cloudy. The current temperature is 58°F, and the expected high and low for today, Tuesday, August 3, 2021, are -° high temperature and 54°F low temperature. The wind is currently blowing at 16 miles per hour, and coming from the West. The wind is gusting to 24 mph. With the wind and the atmosphere the temperature feels like 55° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 86 percent, and air pressure at 29.94 in. Visibility is 8 nautical miles. There are 2 current weather alert(s).
