⚠️ Active Weather Alerts
- Heat Advisory: Heat Advisory issued October 2 at 1:25AM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA
- Coastal Flood Advisory: Coastal Flood Advisory issued October 1 at 7:39PM PDT until October 2 at 6:00PM PDT by NWS San Francisco CA
📍 Castro Valley, CA
🌫
61°
Feels like 61° · Fog/Mist
💧
Humidity
82%
🌬
Wind
Calm
🌡
Dewpoint
55°
👁
Visibility
6 mi
Hourly Forecast
7-Day Forecast
🗓 Today
⛅
87°
Saturday
☀️
92°
Sunday
⛅
91°
Monday
☀️
88°
Tuesday
☀️
89°
Wednesday
☀️
90°
Thursday
☀️
💧1%
88°
Air Quality
EPA AirNow0
Unknown
Air Quality Index
Primary
--
PM2.5
—
Ozone
—
Fire Risk
USFS / NWS🔥
Low
Fire Weather Index: 9
🌬
Wind Speed
3 mph
💧
Humidity
61%
Sun & UV
🌅
2:05 PM
Sunrise
6
High
UV Index
🌇
1:50 AM
Sunset
Moon Phase
🌖
Waning Gibbous
64% Illumination
Moonrise @ 11:22 AM