Alcatraz Island Weather Forecast
Local 7-day forecast
Slight Chance Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Alcatraz Island in one place.
A slight chance of rain before 4pm. Partly sunny, with a high near 66.
Local Weather Overview
This forecast page for Alcatraz Island is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 30, 2026 2:20 AM PDT.
The active forecast window currently covers Nov 3 to Nov 5, 2026 for Alcatraz Island.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 3 to Nov 5, 2026
- Latest sync
- Oct 30, 2026 2:20 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Alcatraz Island
Tuesday looks like the warmest upcoming period in Alcatraz Island at 66 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Thursday at about 1 to 6 mph WNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 30, 2026 2:20 AM PDT
- Coverage
- 3 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain between 10pm and 3am, then patchy fog and a slight chance of rain between 3am and 4am, then a chance of rain and patchy fog. Partly cloudy, with a low around 44.
A chance of rain and patchy fog before 4pm. Mostly sunny, with a high near 65.
Areas of fog between 1am and 4am, then areas of fog and a chance of rain. Mostly cloudy, with a low around 44.
Areas of fog and a chance of rain before 7am, then a chance of rain and patchy fog. Mostly sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Nov 3
|
Slight Chance Light Rain
|
66°F |
5 mph
E
|
|
Tuesday Night
Nov 3
|
Slight Chance Light Rain
|
44°F |
2 mph
NNW
|
|
Wednesday
Nov 4
|
Chance Light Rain
|
65°F |
5 mph
WNW
|
|
Wednesday Night
Nov 4
|
Mostly Cloudy then Areas Of Fog
|
44°F |
0 to 5 mph
NW
|
|
Thursday
Nov 5
|
Areas Of Fog then Chance Light Rain
|
65°F |
1 to 6 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alcatraz Island.
