Alameda County, CA Weather Forecast
County weather hub
Sunny
Compare major city weather across Alameda County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 90. West wind around 6 mph.
County Weather Overview
This county weather page brings together forecast coverage for Alameda County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 13 of 16 mapped cities in Alameda County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Sep 23 to Sep 27, 2026
- Latest sync
- Sep 21, 2026 4:39 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Alameda County
Wednesday looks like the warmest upcoming period in Alameda County at 90 degrees F.
Saturday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Friday at about 13 to 16 mph WSW.
The forecast from Sep 23 through Sep 27 stays mostly dry.
Forecast Details
- Last updated
- Sep 21, 2026 4:39 PM PDT
- Coverage
- 6 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
Mostly clear, with a low around 62.
Sunny, with a high near 88.
Mostly clear, with a low around 62.
Sunny, with a high near 81.
Mostly clear, with a low around 59.
Sunny, with a high near 80.
Mostly clear, with a low around 58.
Sunny, with a high near 78.
Mostly clear, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Sunny
|
90°F |
6 mph
W
|
|
Wednesday Night
Sep 23
|
Mostly Clear
|
62°F |
7 mph
WSW
|
|
Thursday
Sep 24
|
Sunny
|
88°F |
7 to 13 mph
WSW
|
|
Thursday Night
Sep 24
|
Mostly Clear
|
62°F |
12 to 15 mph
WSW
|
|
Friday
Sep 25
|
Sunny
|
81°F |
13 to 16 mph
WSW
|
|
Friday Night
Sep 25
|
Mostly Clear
|
59°F |
9 to 13 mph
WSW
|
|
Saturday
Sep 26
|
Sunny
|
80°F |
12 mph
WSW
|
|
Saturday Night
Sep 26
|
Mostly Clear
|
58°F |
10 to 14 mph
WSW
|
|
Sunday
Sep 27
|
Sunny
|
78°F |
10 to 14 mph
WSW
|
|
Sunday Night
Sep 27
|
Mostly Clear
|
58°F |
7 to 10 mph
WSW
|
Major City Forecasts
Live forecast snapshots for major cities across Alameda County.
Coverage
Forecast coverage currently spans 13 of 16 mapped cities in Alameda County.
Largest mapped city population in this region: 424,891.
