Castro Valley weather — 10-day forecast
Temperature, rain, wind and feels-like in Castro Valley, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 20:00 · NOAA HRRR model
17 °C
Clear sky
Feels like 15 °C
Next 12 h
- 2017°
- 2116°
- 2215°
- 2315°
- 0014°
- 0113°
- 0213°
- 0313°
- 0413°
- 0513°
- 0613°
- 0712°
- 07:17Sunrise
- 0813°
↑ 17°20:00↓ 12°07:00
- Humidity
- 54 %
- Dew point
- 8 °C
- Gusts
- 10.0 km/h
- Clouds
- 0 %
- Pressure
- 1,019 hPa
Grid point 0.9 km away · 3.0 km grid · elevation 43 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by PM2.5
- PM2.5
- 24.2µg/m³▲
- PM10
- 26.6µg/m³
- Ozone
- 8.6µg/m³
- Nitrogen dioxide
- 47.1µg/m³▲
- Sulphur dioxide
- 2.7µg/m³
- Carbon monoxide
- 334.0µg/m³
- Dust (AOD)
- 0.00
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
10 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Clear sky
24°
15°
Thu
Clear sky
29°
12°
Fri
Clear sky
32°
15°
Sat
Clear sky
28°
12°
Sun
Mainly clear
20°
12°
Mon
Overcast
15°
12°
Tue
Overcast
18°
13°
Wed
Light drizzle1 mm
19°
11°
Thu
Light rain13 mm
18°
12°
Fri
Light drizzle1 mm
17°
12°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 07:16
- Daylight
- 11 h 17
- Sunset
- 18:33
Radiation · 1.0 MJ/m²
Sea state
Sea state at the marine grid point closest to the city.
Significant height: the mean of the highest third of waves. Individual waves reach about twice it.
Data: ECMWF
Today in Castro Valley the mean temperature will be 18.3 °C — +2.0 °C against the normal for 14 October, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Castro Valley