Alcatraz Island, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Thu
Apr 25
Cloudy
Close Hourly
61º / 54º 2% W 19 mph 72%
2pm Partly Cloudy 60º 1% W 19 mph 71%
3pm Mostly Cloudy/Wind 61º 2% W 20 mph 72%
4pm Mostly Cloudy/Wind 60º 2% W 20 mph 73%
5pm Cloudy 59º 2% W 19 mph 76%
6pm Cloudy 58º 2% W 18 mph 77%
7pm Cloudy 57º 2% W 17 mph 80%
8pm Cloudy 56º 4% W 15 mph 83%
9pm Cloudy 56º 15% W 14 mph 84%
10pm Mostly Cloudy 56º 15% W 13 mph 85%
11pm Cloudy 56º 15% W 13 mph 85%
Fri
Apr 26
AM Clouds/PM Sun/Wind
View Hourly
62º / 50º 10% WNW 21 mph 69%
12am Mostly Cloudy 56º 15% W 13 mph 87%
1am Cloudy 55º 15% W 11 mph 87%
2am Cloudy 55º 15% W 11 mph 88%
3am Mostly Cloudy 56º 15% WNW 12 mph 87%
4am Cloudy 55º 12% WNW 11 mph 87%
5am Mostly Cloudy 55º 7% WNW 11 mph 86%
6am Mostly Cloudy 55º 7% WNW 12 mph 85%
7am Cloudy 55º 6% WNW 11 mph 84%
8am Cloudy 56º 7% WNW 11 mph 81%
9am Mostly Cloudy 57º 11% WNW 11 mph 78%
10am Mostly Cloudy 58º 5% WNW 13 mph 73%
11am Partly Cloudy 59º 5% WNW 15 mph 68%
12pm Mostly Sunny 60º 4% WNW 18 mph 66%
1pm Partly Cloudy 60º 2% WNW 19 mph 66%
2pm Partly Cloudy/Wind 61º 2% WNW 20 mph 65%
3pm Mostly Sunny/Wind 62º 3% WNW 20 mph 62%
4pm Sunny/Wind 61º 2% WNW 21 mph 63%
5pm Partly Cloudy/Wind 61º 2% WNW 20 mph 63%
6pm Sunny/Wind 60º 2% WNW 20 mph 64%
7pm Sunny 59º 2% WNW 19 mph 66%
8pm Clear 57º 3% WNW 17 mph 71%
9pm Clear 56º 4% WNW 15 mph 73%
10pm Clear 55º 4% NW 13 mph 74%
11pm Partly Cloudy 55º 4% NW 11 mph 76%
Sat
Apr 27
Mostly Sunny
View Hourly
65º / 53º 5% W 17 mph 64%
12am Clear 54º 5% NW 11 mph 76%
1am Clear 54º 5% NW 8 mph 77%
2am Clear 53º 5% NW 7 mph 79%
3am Clear 53º 5% NW 5 mph 79%
4am Clear 52º 5% NW 5 mph 79%
5am Clear 52º 6% NW 4 mph 79%
6am Clear 51º 5% NW 4 mph 81%
7am Sunny 51º 5% NW 4 mph 79%
8am Sunny 53º 4% WNW 3 mph 76%
9am Sunny 55º 3% WNW 3 mph 72%
10am Partly Cloudy 57º 2% W 6 mph 68%
11am Sunny 58º 1% W 8 mph 64%
12pm Sunny 61º 1% W 9 mph 61%
1pm Sunny 62º 1% W 11 mph 59%
Sun
Apr 28
Partly Cloudy 65º / 50º 6% WNW 18 mph 67%
Mon
Apr 29
Sunny 69º / 50º 4% WNW 15 mph 59%
Tue
Apr 30
Sunny 71º / 51º 4% WNW 14 mph 57%
Wed
May 1
Partly Cloudy 68º / 51º 4% WSW 16 mph 61%
Thu
May 2
Mostly Sunny 66º / 50º 14% W 18 mph 63%

Weather Radar for Alcatraz Island, CA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Alcatraz Island, CA

This Afternoon
High : 59ºF
W wind 16 to 18 kt. Sunny early, then becoming mostly cloudy.
Tonight
Low : 55ºF
W wind 12 to 17 kt decreasing to 5 to 10 kt after midnight. Cloudy, then becoming partly cloudy toward daybreak.
Friday
High : 59ºF
W wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 27 kt. Sunny.
Friday Night
Low : 52ºF
NW wind 11 to 16 kt decreasing to 5 to 10 kt after midnight. Winds could gust as high as 23 kt. Clear.
Saturday
High : 60ºF
Variable winds less than 5 kt becoming W 7 to 12 kt in the morning. Sunny.
Saturday Night
Low : 54ºF
WNW wind 10 to 14 kt. Mostly clear.
Sunday
High : 61ºF
WNW wind 10 to 14 kt, with gusts as high as 21 kt. Sunny.
Sunday Night
Low : 52ºF
WNW wind 12 to 16 kt, with gusts as high as 23 kt. Clear.
Monday
High : 62ºF
WNW wind 9 to 11 kt. Sunny.

NOAA Buoy Data Near Alcatraz Island, CA See Map

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    Wind Speed Forecast for Alcatraz Island, CA

    ThursdayFridaySaturday
    Wind Speed (MPH) 191813111213202013746
    2pm6pm10pm2am6am10am2pm6pm10pm2am6am10am
    MPH 191813111213202013746
    DIR WWWWWNWWNWWNWWNWNWNWNWW

    Current Weather Conditions In Alcatraz Island, CA

    As Of: 20 minutes ago

    • 60ºF
    • 57ºF
    • 19mph
    • 0º (W)
    • 27mph
    • Partly Cloudy
    • 10mi
    • 30.08"
    • 71%
    • 0ºF

    The weather right now in Alcatraz Island, CA is Partly Cloudy. The current temperature is 60°F, and the expected high and low for today, Thursday, April 25, 2024, are 61° high temperature and 54°F low temperature. The wind is currently blowing at 19 miles per hour, and coming from the West. The wind is gusting to 27 mph. With the wind and the atmosphere the temperature feels like 57° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 71 percent, and air pressure at 30.08 in. Visibility is 10 nautical miles. There are no current weather alert(s).