Alcatraz Island, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Thu
Mar 28
Partly Cloudy
Close Hourly
59º / 50º 1% W 13 mph 60%
4pm Mostly Cloudy 57º 1% WSW 14 mph 59%
5pm Mostly Cloudy 57º 1% W 14 mph 62%
6pm Cloudy 56º 1% W 13 mph 63%
7pm Cloudy 55º 8% W 11 mph 69%
8pm Cloudy 54º 2% W 9 mph 72%
9pm Cloudy 54º 2% W 7 mph 74%
10pm Cloudy 53º 2% W 5 mph 76%
11pm Mostly Cloudy 53º 4% WSW 5 mph 78%
Fri
Mar 29
Rain/Wind
View Hourly
55º / 50º 99% SE 21 mph 83%
12am Cloudy 52º 6% WSW 5 mph 80%
1am Cloudy 52º 5% SW 5 mph 81%
2am Cloudy 52º 19% SSW 5 mph 82%
3am Cloudy 51º 24% S 5 mph 84%
4am Showers 51º 35% S 6 mph 84%
5am Showers 51º 54% S 7 mph 84%
6am Light Rain 51º 68% SSE 8 mph 84%
7am Rain 51º 84% SSE 10 mph 87%
8am Rain 51º 89% SSE 12 mph 86%
9am Rain 51º 87% SE 13 mph 87%
10am Rain 52º 83% SE 15 mph 85%
11am Rain 52º 86% SE 17 mph 85%
12pm Rain 52º 98% SE 18 mph 81%
1pm Rain 52º 99% SE 19 mph 81%
2pm Rain/Wind 52º 99% SE 20 mph 83%
3pm Rain/Wind 53º 81% SE 21 mph 80%
4pm Rain/Wind 53º 84% SE 21 mph 81%
5pm Light Rain 54º 73% SE 19 mph 81%
6pm Light Rain 55º 68% SSE 16 mph 80%
7pm Rain 54º 71% SSE 14 mph 81%
8pm Showers 54º 58% SSE 14 mph 83%
9pm Light Rain 53º 62% SE 14 mph 84%
10pm Light Rain 53º 68% SE 13 mph 86%
11pm Light Rain 53º 62% SE 13 mph 85%
Sat
Mar 30
Scattered Thunderstorms
View Hourly
58º / 49º 52% NE 12 mph 75%
12am Showers 53º 56% SE 14 mph 84%
1am Showers 53º 53% SE 14 mph 83%
2am Showers 52º 51% SE 13 mph 83%
3am Showers 52º 58% SE 13 mph 82%
4am Light Rain 52º 63% ESE 13 mph 83%
5am Showers 52º 59% ESE 13 mph 82%
6am Showers 51º 59% ESE 12 mph 83%
7am Showers 51º 47% E 11 mph 82%
8am Showers 52º 41% ENE 10 mph 83%
9am Showers 52º 38% ENE 9 mph 84%
10am Showers 53º 36% NE 11 mph 84%
11am Showers 54º 42% NE 11 mph 79%
12pm Showers 56º 53% NE 10 mph 71%
1pm Scattered Thunderstorms 56º 46% NE 9 mph 72%
2pm Scattered Thunderstorms 57º 44% NE 9 mph 68%
3pm Showers 57º 37% NE 10 mph 68%
Sun
Mar 31
Partly Cloudy 61º / 49º 9% NW 13 mph 75%
Mon
Apr 1
Partly Cloudy 66º / 51º 8% N 12 mph 69%
Tue
Apr 2
Partly Cloudy 66º / 51º 7% SW 11 mph 75%
Wed
Apr 3
Partly Cloudy 64º / 50º 7% W 14 mph 78%
Thu
Apr 4
Partly Cloudy/Wind 59º / 47º 3% WNW 22 mph 62%

Weather Radar for Alcatraz Island, CA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Alcatraz Island, CA

Late Afternoon
High : 56ºF
WSW wind around 14 kt. A slight chance of showers.
Tonight
Low : 54ºF
W wind 5 to 11 kt becoming S after midnight. Mostly cloudy.
Friday
High : 54ºF
SE wind 8 to 13 kt increasing to 14 to 19 kt in the afternoon. Winds could gust as high as 27 kt. Showers.
Friday Night
Low : 51ºF
SE wind 13 to 18 kt. Showers and possibly a thunderstorm.
Saturday
High : 57ºF
ESE wind 10 to 13 kt becoming NE in the afternoon. Showers likely.
Saturday Night
Low : 51ºF
NNE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy.
Sunday
High : 58ºF
N wind 5 to 9 kt becoming SW in the morning. Partly sunny.
Sunday Night
Low : 51ºF
W wind 5 to 9 kt becoming NNW in the evening. Mostly clear.
Monday
High : 62ºF
N wind 5 to 8 kt becoming W in the afternoon. Sunny.

NOAA Buoy Data Near Alcatraz Island, CA See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for Alcatraz Island, CA

    ThursdayFridaySaturday
    Wind Speed (MPH) 149561218211414131010
    4pm8pm12am4am8am12pm4pm8pm12am4am8am12pm
    MPH 149561218211414131010
    DIR WSWWWSWSSSESESESSESEESEENENE

    Current Weather Conditions In Alcatraz Island, CA

    As Of: 13 minutes ago

    • 57ºF
    • 54ºF
    • 14mph
    • 0º (WSW)
    • 19mph
    • Mostly Cloudy
    • 10mi
    • 30.06"
    • 59%
    • 0ºF

    The weather right now in Alcatraz Island, CA is Mostly Cloudy. The current temperature is 57°F, and the expected high and low for today, Thursday, March 28, 2024, are 59° high temperature and 50°F low temperature. The wind is currently blowing at 14 miles per hour, and coming from the West Southwest. The wind is gusting to 19 mph. With the wind and the atmosphere the temperature feels like 54° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 59 percent, and air pressure at 30.06 in. Visibility is 10 nautical miles. There are no current weather alert(s).