Alcatraz Island, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Apr 19
AM Clouds/PM Sun
Close Hourly
60º / 51º 8% WSW 16 mph 77%
11am Partly Cloudy 56º 2% SW 10 mph 83%
12pm Partly Cloudy 57º 2% WSW 11 mph 79%
1pm Partly Cloudy 59º 2% WSW 13 mph 75%
2pm Sunny 60º 2% WSW 14 mph 74%
3pm Sunny 60º 3% WSW 15 mph 72%
4pm Sunny 60º 3% WSW 15 mph 72%
5pm Partly Cloudy 58º 5% WSW 16 mph 77%
6pm Partly Cloudy 57º 8% WSW 16 mph 81%
7pm Partly Cloudy 56º 10% WSW 14 mph 85%
8pm Partly Cloudy 55º 11% WSW 13 mph 88%
9pm Partly Cloudy 55º 8% WSW 11 mph 90%
10pm Foggy 54º 12% SW 9 mph 92%
11pm Mostly Cloudy 53º 12% SW 8 mph 92%
Sat
Apr 20
Partly Cloudy
View Hourly
67º / 51º 10% WSW 16 mph 68%
12am Cloudy 53º 10% SW 8 mph 92%
1am Cloudy 52º 12% SW 8 mph 92%
2am Cloudy 52º 13% SW 8 mph 93%
3am Cloudy 52º 13% SW 9 mph 93%
4am Cloudy 52º 13% WSW 8 mph 92%
5am Mostly Cloudy 52º 13% WSW 8 mph 91%
6am Mostly Cloudy 52º 12% SW 7 mph 90%
7am Cloudy 52º 11% SW 6 mph 91%
8am Mostly Cloudy 54º 9% SW 6 mph 88%
9am Mostly Cloudy 55º 10% SW 7 mph 86%
10am Partly Cloudy 57º 7% SW 9 mph 81%
11am Mostly Sunny 59º 6% WSW 10 mph 76%
12pm Sunny 61º 7% WSW 12 mph 68%
1pm Sunny 63º 9% WSW 13 mph 62%
2pm Sunny 64º 2% WSW 15 mph 57%
3pm Sunny 66º 2% W 16 mph 52%
4pm Sunny 66º 1% W 16 mph 50%
5pm Sunny 65º 1% W 16 mph 50%
6pm Sunny 64º 0% W 15 mph 51%
7pm Sunny 62º 0% W 13 mph 55%
8pm Clear 61º 1% WNW 10 mph 58%
9pm Clear 59º 2% WNW 8 mph 64%
10pm Partly Cloudy 59º 2% WNW 7 mph 67%
11pm Partly Cloudy 58º 4% W 6 mph 72%
Sun
Apr 21
Mostly Sunny
View Hourly
69º / 52º 7% WSW 13 mph 71%
12am Partly Cloudy 57º 5% W 6 mph 77%
1am Partly Cloudy 56º 6% W 6 mph 82%
2am Partly Cloudy 55º 6% W 5 mph 86%
3am Partly Cloudy 54º 6% W 5 mph 86%
4am Partly Cloudy 53º 7% W 4 mph 88%
5am Clear 53º 7% W 4 mph 88%
6am Partly Cloudy 52º 7% WSW 4 mph 90%
7am Sunny 52º 7% WSW 3 mph 91%
8am Sunny 54º 7% SW 3 mph 89%
9am Sunny 56º 5% SW 3 mph 84%
10am Sunny 59º 4% SSW 4 mph 78%
Mon
Apr 22
Partly Cloudy 67º / 53º 12% SW 15 mph 72%
Tue
Apr 23
AM Clouds/PM Sun 62º / 52º 6% SW 16 mph 71%
Wed
Apr 24
Partly Cloudy 60º / 50º 9% WSW 16 mph 73%
Thu
Apr 25
Cloudy 60º / 52º 13% W 16 mph 75%
Fri
Apr 26
Partly Cloudy 62º / 51º 21% WNW 17 mph 77%

Weather Radar for Alcatraz Island, CA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Alcatraz Island, CA

Today
High : 58ºF
WSW wind 9 to 14 kt. Mostly sunny.
Tonight
Low : 54ºF
WSW wind 8 to 14 kt. A slight chance of drizzle after 11pm.
Saturday
High : 63ºF
WSW wind 8 to 17 kt. Partly sunny, then gradually becoming sunny.
Saturday Night
Low : 53ºF
W wind 8 to 13 kt. Mostly clear.
Sunday
High : 65ºF
W wind 5 to 9 kt. Sunny.
Sunday Night
Low : 54ºF
W wind 5 to 11 kt. Mostly clear.
Monday
High : 66ºF
Variable winds less than 5 kt becoming WSW 5 to 9 kt in the afternoon. Mostly sunny.
Monday Night
Low : 55ºF
SW wind 8 to 11 kt. Partly cloudy.
Tuesday
High : 59ºF
SW wind 9 to 13 kt, with gusts as high as 20 kt. Mostly sunny.

NOAA Buoy Data Near Alcatraz Island, CA See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for Alcatraz Island, CA

    FridaySaturdaySunday
    Wind Speed (MPH) 101514896101613653
    11am3pm7pm11pm3am7am11am3pm7pm11pm3am7am
    MPH 101514896101613653
    DIR SWWSWWSWSWSWSWWSWWWWWWSW

    Current Weather Conditions In Alcatraz Island, CA

    As Of: 39 minutes ago

    • 56ºF
    • 53ºF
    • 10mph
    • 0º (SW)
    • 10mph
    • Partly Cloudy
    • 10mi
    • 29.98"
    • 83%
    • 0ºF

    The weather right now in Alcatraz Island, CA is Partly Cloudy. The current temperature is 56°F, and the expected high and low for today, Friday, April 19, 2024, are 60° high temperature and 51°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the Southwest. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 53° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 83 percent, and air pressure at 29.98 in. Visibility is 10 nautical miles. There are no current weather alert(s).