Castaic weather — 10-day forecast

Temperature, rain, wind and feels-like in Castaic, hour by hour and over 10 days, with the seasonal normal for context.

Now

Reading from 21:00 · NOAA HRRR model

26 °C

Clear sky

1.4 km/hforce 0

Next 12 h

  • 2126°
  • 2225°
  • 2324°
  • 0025°
  • 0123°
  • 0223°
  • 0322°
  • 0421°
  • 0521°
  • 0621°
  • 06:11Sunrise
  • 0721°
  • 0825°
  • 0928°

21°06:00 28°09:00

Humidity
35 %
Dew point
9 °C
Gusts
8.8 km/h
Clouds
2 %
Pressure
1,013 hPa

Grid point 0.3 km away · 3.0 km grid · elevation 399 m

Air quality

The European air-quality index for the city, and the pollutants that set it.

Reading from 23:00
24
Fair

Index set by Ozone

Ozone
59.2µg/m³
PM2.5
11.4µg/m³
PM10
14.4µg/m³
Nitrogen dioxide
6.2µg/m³
Sulphur dioxide
0.8µg/m³
Carbon monoxide
144.0µg/m³
Dust (AOD)
0.02

Generated using Copernicus Atmosphere Monitoring Service information

Hour by hour

Step-by-step detail: temperature, wind, cloud cover and ultraviolet.

Estimated from a deterministic model, not an ensemble probability.
°C

10 days

Each day's extremes and the chance of rain, out to the end of the run.

17° → 38°

Rain probability (> 1 mm): 50 ECMWF ensemble members.

  • Today

    Clear sky

    35°

    24°

  • Sat

    Clear sky

    38°

    21°

  • Sun

    Clear sky

    38°

    21°

  • Mon

    Partly cloudy

    36°

    19°

  • Tue

    Overcast

    33°

    19°

  • Wed

    Light drizzle0 mm

    31°

    22°

  • Thu

    Light drizzle0 mm

    29°

    18°

  • Fri

    Clear sky

    28°

    17°

  • Sat

    Clear sky

    31°

    20°

  • Sun

    Clear sky

    34°

    21°

Sun and UV

Sunrise, sunset, day length and ultraviolet intensity.

Max UV3low
Sunrise
06:10
Daylight
13 h 41
Sunset
19:51

Radiation · 3.3 MJ/m²

Sea state

Sea state at the marine grid point closest to the city.

0.6 mperiod 17 s 215°

Significant height: the mean of the highest third of waves. Individual waves reach about twice it.

Data: ECMWF

Today in Castaic the mean temperature will be 28.8 °C — +4.3 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)

Castaic climate — normals and trends