Alcatraz Island, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Apr 12
AM Clouds/PM Sun
Close Hourly
58º / 48º 9% WSW 16 mph 78%
4am Partly Cloudy 52º 2% WSW 7 mph 85%
5am Partly Cloudy 52º 2% W 8 mph 87%
6am Partly Cloudy 51º 2% W 9 mph 87%
7am Mostly Cloudy 51º 2% W 8 mph 87%
8am Mostly Cloudy 52º 2% W 9 mph 84%
9am Cloudy 54º 2% W 10 mph 82%
10am Cloudy 55º 2% WSW 12 mph 79%
11am Mostly Cloudy 56º 3% WSW 13 mph 77%
12pm Mostly Cloudy 56º 3% WSW 13 mph 73%
1pm Partly Cloudy 57º 7% SW 15 mph 71%
2pm Partly Cloudy 58º 3% SW 15 mph 69%
3pm Mostly Cloudy 58º 6% SW 16 mph 68%
4pm Mostly Cloudy 58º 6% SW 16 mph 69%
5pm Cloudy 57º 9% SW 16 mph 72%
6pm Mostly Cloudy 56º 7% SW 16 mph 73%
7pm Mostly Cloudy 56º 7% SSW 16 mph 77%
8pm Mostly Cloudy 55º 13% SSW 15 mph 81%
9pm Cloudy 55º 19% S 15 mph 81%
10pm Cloudy 55º 16% S 14 mph 82%
11pm Showers 55º 38% S 14 mph 81%
Sat
Apr 13
Rain
View Hourly
54º / 46º 74% SE 15 mph 77%
12am Rain 54º 68% S 15 mph 83%
1am Rain 54º 88% S 14 mph 83%
2am Rain 52º 90% SSW 12 mph 88%
3am Rain 51º 98% SW 13 mph 88%
4am Rain 51º 99% SW 12 mph 87%
5am Rain 50º 83% SSW 12 mph 85%
6am Rain 49º 79% S 10 mph 87%
7am Rain 49º 63% SSE 12 mph 85%
8am Showers 49º 51% SSE 14 mph 83%
9am Showers 50º 44% SSE 14 mph 83%
10am Showers 51º 40% SSE 15 mph 77%
11am Few Showers 52º 33% SE 15 mph 74%
12pm Showers 53º 54% SSE 14 mph 72%
1pm Showers 53º 58% SSE 14 mph 73%
2pm Rain 54º 67% SSE 13 mph 73%
3pm Rain 54º 75% SE 12 mph 74%
4pm Rain 54º 72% SE 14 mph 74%
5pm Rain 53º 67% ESE 15 mph 77%
6pm Rain 52º 67% ESE 14 mph 80%
7pm Rain 52º 63% ESE 13 mph 79%
8pm Showers 51º 43% ESE 12 mph 82%
9pm Showers 51º 39% E 10 mph 81%
10pm Showers 50º 48% E 10 mph 82%
11pm Showers 50º 44% ENE 10 mph 83%
Sun
Apr 14
Cloudy
View Hourly
57º / 47º 24% NNW 12 mph 77%
12am Showers 49º 47% NE 10 mph 85%
1am Few Showers 48º 31% ENE 10 mph 87%
2am Cloudy 48º 23% ENE 9 mph 89%
3am Cloudy 47º 19% NE 8 mph 89%
Mon
Apr 15
Partly Cloudy 63º / 49º 8% W 12 mph 75%
Tue
Apr 16
Partly Cloudy 67º / 50º 8% W 12 mph 74%
Wed
Apr 17
Partly Cloudy 71º / 53º 6% NNW 13 mph 64%
Thu
Apr 18
Cloudy 72º / 52º 4% NNW 12 mph 60%
Fri
Apr 19
Partly Cloudy 67º / 51º 6% SW 14 mph 70%

Weather Radar for Alcatraz Island, CA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Alcatraz Island, CA

Overnight
Low : 52ºF
W wind around 8 kt. Partly cloudy.
Friday
High : 56ºF
SW wind 12 to 16 kt. Partly sunny.
Friday Night
Low : 50ºF
S wind 13 to 17 kt, with gusts as high as 25 kt. Rain, mainly after 2am.
Saturday
High : 54ºF
SSW wind 10 to 16 kt becoming SSE in the morning. Showers, with thunderstorms also possible after 11am.
Saturday Night
Low : 49ºF
ESE wind 8 to 13 kt becoming NE after midnight. Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am.
Sunday
High : 56ºF
NE wind 6 to 8 kt becoming WNW in the afternoon. Partly sunny.
Sunday Night
Low : 51ºF
WNW wind 6 to 12 kt. Mostly clear.
Monday
High : 59ºF
NW wind 5 to 9 kt. Mostly sunny.
Monday Night
Low : 51ºF
W wind 7 to 10 kt. Mostly clear.

NOAA Buoy Data Near Alcatraz Island, CA See Map

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    Wind Speed Forecast for Alcatraz Island, CA

    FridaySaturdaySunday
    Wind Speed (MPH) 7913161515121414141210
    4am8am12pm4pm8pm12am4am8am12pm4pm8pm12am
    MPH 7913161515121414141210
    DIR WSWWWSWSWSSWSSWSSESSESEESENE

    Current Weather Conditions In Alcatraz Island, CA

    As Of: 10 minutes ago

    • 52ºF
    • 50ºF
    • 7mph
    • 0º (WSW)
    • 7mph
    • Partly Cloudy
    • 10mi
    • 29.76"
    • 85%
    • 0ºF

    The weather right now in Alcatraz Island, CA is Partly Cloudy. The current temperature is 52°F, and the expected high and low for today, Friday, April 12, 2024, are 58° high temperature and 48°F low temperature. The wind is currently blowing at 7 miles per hour, and coming from the West Southwest. The wind is gusting to 7 mph. With the wind and the atmosphere the temperature feels like 50° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 85 percent, and air pressure at 29.76 in. Visibility is 10 nautical miles. There are no current weather alert(s).