Model estimate for 11:00 AM PDT (no recent station report)

Castaic, CA weather

Sunny and 69°21°.

Mostly agree

Now 69°21°

Sunny

Wind: 15 mph24 km/h; From the northeast. 1016–15 mph24 km/h through 11 PM
Dew point: 46°8°; Comfortable
UV index: 4Moderate; Moderate until 4 PM · peak 5
Air quality: 36Good; Main pollutant: Ozone

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 74°23° today at 2 PM
Below 60°16° tonight after 8 PM
Low 52°11° tomorrow at 6 AM
Above 60°16° tomorrow by 9 AM

This afternoonUp to 74°23° by 2 PM · Clear
TonightDown to 53°12° by 5 AM · Clear
Tomorrow morningUp to 69°21° by 11 AM · Clear
Tomorrow afternoonNear 72°22° · Partly cloudy
Tomorrow nightDown to 54°12° by 5 AM · Partly cloudy
Monday morningUp to 68°20° by 10 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 11a	Sunny	69°21° (likely 67°19° to 71°22°)	69°21°	0%	15 mph24 km/h from NE, gusts 19 mph31 km/h	44%	0%	4
Sat 12p	Sunny	72°22° (likely 69°21° to 73°23°)	72°22°	0%	15 mph24 km/h from NE, gusts 19 mph30 km/h	37%	0%	5
Sat 1p	Sunny	73°23° (likely 71°22° to 75°24°)	73°23°	0%	15 mph24 km/h from NE, gusts 19 mph30 km/h	34%	0%	5
Sat 2p	Sunny	74°23° (likely 72°22° to 76°24°)	74°23°	0%	10 mph16 km/h from NE, gusts 18 mph30 km/h	32%	0%	5
Sat 3p	Sunny	74°23° (likely 73°23° to 77°25°)	74°23°	0%	10 mph16 km/h from NE, gusts 16 mph25 km/h	29%	0%	3
Sat 4p	Sunny	74°23° (likely 72°22° to 77°25°)	74°23°	0%	10 mph16 km/h from NE, gusts 13 mph22 km/h	30%	1%	2
Sat 5p	Sunny	72°22° (likely 71°22° to 76°24°)	72°22°	0%	10 mph16 km/h from NNE, gusts 10 mph16 km/h	32%	1%	2
Sat 6p	Clear	65°18° (likely 65°18° to 72°22°)	65°18°	0%	10 mph16 km/h from NNE, gusts 8 mph12 km/h	38%	1%	0
Sat 7p	Clear	62°17° (likely 62°17° to 66°19°)	62°17°	0%	10 mph16 km/h from NNE, gusts 8 mph12 km/h	45%	0%	0
Sat 8p	Clear	59°15° (likely 58°14° to 63°17°)	59°15°	0%	10 mph16 km/h from NNE, gusts 6 mph10 km/h	52%	0%	0
Sat 9p	Clear	58°14° (likely 56°13° to 62°17°)	58°14°	0%	10 mph16 km/h from NNE, gusts 4 mph6 km/h	55%	0%	0
Sat 10p	Clear	58°14° (likely 54°12° to 60°16°)	58°14°	0%	10 mph16 km/h from NNE, gusts 4 mph7 km/h	58%	0%	0
Sat 11p	Clear	58°14° (likely 53°12° to 59°15°)	58°14°	0%	10 mph16 km/h from N, gusts 5 mph8 km/h	63%	0%	0
Sun 12a	Clear	57°14° (likely 52°11° to 58°14°)	57°14°	0%	10 mph16 km/h from N, gusts 4 mph7 km/h	63%	0%	0
Sun 1a	Clear	57°14° (likely 52°11° to 57°14°)	57°14°	0%	10 mph16 km/h from N, gusts 4 mph6 km/h	64%	0%	0
Sun 2a	Clear	55°13° (likely 52°11° to 57°14°)	55°13°	0%	10 mph16 km/h from N, gusts 4 mph6 km/h	66%	0%	0
Sun 3a	Clear	54°12° (likely 51°11° to 56°13°)	54°12°	0%	10 mph16 km/h from N, gusts 4 mph7 km/h	67%	0%	0
Sun 4a	Clear	54°12° (likely 51°11° to 55°13°)	54°12°	0%	10 mph16 km/h from N, gusts 4 mph6 km/h	69%	0%	0
Sun 5a	Clear	53°12° (likely 51°11° to 55°13°)	53°12°	0%	10 mph16 km/h from N, gusts 5 mph7 km/h	68%	0%	0
Sun 6a	Clear	52°11° (likely 51°11° to 55°13°)	52°11°	0%	10 mph16 km/h from N, gusts 5 mph9 km/h	68%	0%	0
Sun 7a	Sunny	52°11° (likely 51°11° to 55°13°)	52°11°	0%	10 mph16 km/h from N, gusts 5 mph7 km/h	69%	0%	0
Sun 8a	Sunny	58°14° (likely 52°11° to 58°14°)	58°14°	0%	5 mph8 km/h from NNE, gusts 4 mph6 km/h	66%	0%	0
Sun 9a	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from NNE, gusts 5 mph7 km/h	57%	1%	1
Sun 10a	Mostly sunny	67°19° (likely 66°19° to 68°20°)	67°19°	0%	5 mph8 km/h from NNE, gusts 4 mph6 km/h	44%	9%	3
Sun 11a	Sunny	69°21° (likely 69°21° to 72°22°)	69°21°	0%	10 mph16 km/h from WSW, gusts 4 mph7 km/h	37%	34%	4
Sun 12p	Sunny	73°23° (likely 72°22° to 75°24°)	73°23°	0%	10 mph16 km/h from WSW, gusts 5 mph8 km/h	31%	40%	5
Sun 1p	Sunny	74°23° (likely 74°23° to 76°24°)	74°23°	0%	10 mph16 km/h from WSW, gusts 6 mph10 km/h	31%	40%	5
Sun 2p	Sunny	75°24° (likely 75°24° to 77°25°)	75°24°	0%	10 mph16 km/h from WSW, gusts 9 mph14 km/h	31%	41%	5
Sun 3p	Sunny	75°24° (likely 74°23° to 77°25°)	75°24°	0%	10 mph16 km/h from WSW, gusts 11 mph18 km/h	32%	41%	4
Sun 4p	Sunny	73°23° (likely 73°23° to 76°24°)	73°23°	0%	10 mph16 km/h from WSW, gusts 12 mph20 km/h	37%	41%	3
Sun 5p	Sunny	70°21° (likely 70°21° to 74°23°)	70°21°	0%	10 mph16 km/h from WSW, gusts 13 mph21 km/h	41%	42%	2
Sun 6p	Partly cloudy	65°18° (likely 65°18° to 70°21°)	65°18°	0%	10 mph16 km/h from WSW, gusts 11 mph17 km/h	51%	49%	0
Sun 7p	Cloudy	61°16° (likely 61°16° to 66°19°)	61°16°	0%	10 mph16 km/h from WSW, gusts 7 mph11 km/h	61%	65%	0
Sun 8p	Cloudy	59°15° (likely 59°15° to 65°18°)	59°15°	0%	5 mph8 km/h from W, gusts 5 mph8 km/h	67%	66%	0
Sun 9p	Partly cloudy	59°15° (likely 57°14° to 62°17°)	59°15°	0%	5 mph8 km/h from W, gusts 5 mph9 km/h	67%	52%	0
Sun 10p	Cloudy	58°14° (likely 55°13° to 60°16°)	58°14°	0%	5 mph8 km/h from W, gusts 4 mph7 km/h	68%	62%	0
Sun 11p	Cloudy	57°14° (likely 54°12° to 58°14°)	57°14°	0%	5 mph8 km/h from N, gusts 3 mph6 km/h	69%	61%	0
Mon 12a	Cloudy	56°13° (likely 53°12° to 57°14°)	56°13°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	67%	60%	0
Mon 1a	Mostly clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	67%	20%	0
Mon 2a	Mostly clear	55°13° (likely 52°11° to 56°13°)	55°13°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	68%	42%	0
Mon 3a	Clear	55°13° (likely 51°11° to 57°14°)	55°13°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	68%	36%	0
Mon 4a	Mostly clear	55°13° (likely 51°11° to 56°13°)	55°13°	0%	5 mph8 km/h from N, gusts 5 mph7 km/h	69%	31%	0
Mon 5a	Mostly clear	54°12° (likely 50°10° to 56°13°)	54°12°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	68%	11%	0
Mon 6a	Clear	53°12° (likely 50°10° to 57°14°)	53°12°	0%	5 mph8 km/h from N, gusts 5 mph9 km/h	68%	2%	0
Mon 7a	Sunny	52°11° (likely 50°10° to 57°14°)	52°11°	0%	5 mph8 km/h from N, gusts 5 mph9 km/h	68%	0%	0
Mon 8a	Sunny	59°15° (likely 52°11° to 60°16°)	59°15°	0%	5 mph8 km/h from NNW, gusts 5 mph8 km/h	66%	0%	0
Mon 9a	Sunny	65°18° (likely 58°14° to 65°18°)	65°18°	0%	5 mph8 km/h from NNW, gusts 4 mph7 km/h	58%	0%	1
Mon 10a	Sunny	68°20° (likely 67°19° to 68°20°)	68°20°	0%	5 mph8 km/h from NNW, gusts 4 mph6 km/h	48%	0%	3

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Sunny. High 74°23°, low 52°11°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
2. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Official NWS forecast
Today: Sunny, with a high near 74. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight: Clear, with a low around 52. North northeast wind around 10 mph, with gusts as high as 20 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
52°11°–54°12°
Wind
14 mph23 km/h, gusts 26 mph42 km/h
UV peak
5
Tomorrow, Oct 25. Mostly sunny. High 75°24°, low 52°11°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Day: Sunny, with a high near 75. Northwest wind 5 to 10 mph.
Night: Mostly clear, with a low around 52. West northwest wind 5 to 10 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
75°24°–77°25°
Low, likely
50°10°–55°13°
Wind
12 mph20 km/h, gusts 19 mph31 km/h
UV peak
5
Monday, Oct 26. Sunny. High 76°24°, low 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 76. Northwest wind 5 to 10 mph.
Night: Clear, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–77°25°
Low, likely
50°10°–54°12°
Wind
12 mph19 km/h, gusts 20 mph32 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 74°23°, low 51°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 74.
Night: Partly cloudy, with a low around 51.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
70°21°–76°24°
Low, likely
49°9°–52°11°
Wind
11 mph17 km/h, gusts 19 mph30 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 72°22°, low 53°12°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 72.
Night: Mostly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–73°23°
Low, likely
48°9°–53°12°
Wind
9 mph15 km/h, gusts 19 mph31 km/h
UV peak
5
Thursday, Oct 29. Mostly cloudy. High 68°20°, low 52°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 68.
Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
51°11°–56°13°
Wind
13 mph20 km/h
UV peak
4
Friday, Oct 30. Showers. High 64°18°, low 49°9°. Rain 0.05 in1.3 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 56°13°
  20% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  20% chance · 0.03 in0.7 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 58°14°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Partly sunny, with a high near 64.
Night: A slight chance of rain showers. Partly cloudy, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–65°18°
Low, likely
49°9°–54°12°
Wind
13 mph21 km/h, gusts 24 mph38 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 65°18°, low 51°11°. Rain 0.05 in1.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
46°8°–55°13°
Wind
10 mph16 km/h, gusts 19 mph30 km/h
UV peak
4
Sunday, Nov 1. Rain. High 65°18°, low 49°9°. Rain 0.14 in3.6 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 55°13°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  20% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Rain, 56°14°
  30% chance · 0.16 in4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 51°10°
  30% chance · 0.13 in3.2 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–71°22°
Low, likely
45°7°–54°12°
Wind
22 mph36 km/h, gusts 34 mph55 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 63°17°, low 50°10°. Rain 0.21 in5.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 55°13°
  20% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–66°19°
Low, likely
42°6°–55°13°
Wind
10 mph16 km/h, gusts 28 mph46 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 74°, low 52°.
Tomorrow
Dry, high 75°, low 52°.
Monday
Dry, high 76°, low 51°.
Rest of week
Mostly dry, highs 63–74°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LOX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Santa Clara River (CA) near Piru

7.9 mi

Below flood stage

Level: 1.6 ft
Flow: 67 cfs

Forecast peak 1.6 ft Sat 12 PM

Reading from Sat 10:15 AM · NWS gauge page

Bouquet Canyon Creek

3.7 mi

Below flood stage

Level: 6.1 ft

Reading from Sat 10 AM · NWS gauge page

Lake Piru

6.8 mi

Below flood stage

Level: 1023 ft
Flow: 49,800 cfs

Reading from Sat 10:15 AM · NWS gauge page

Piru Creek below Santa Felicia Dam

6.8 mi

Below flood stage

Level: 3.4 ft
Flow: 260 cfs

Reading from Sat 10:45 AM · NWS gauge page

Sun & moon

Sun

Daylight: 11 h 1 min; Losing 1 min 57 s a day; shortest Dec 21, 1 h 11 min less
Golden hour: 5:34–6:24 PM; Morning 6:51–7:42 AM
Blue hour: 6:24–6:34 PM; Morning 6:42–6:51 AM; first light 6:42 AM

Stars tonight? Fair

Clear 6:34 PM–6:42 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:30 AM · rises 5:07 PM
Full moon: Oct 25
New moon: Nov 8

Looking northwest from Castaic. The highest point on the skyline is about 5,700 ft, 17 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.

Castaic, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Santa Clara River (CA) near Piru

Bouquet Canyon Creek

Lake Piru

Piru Creek below Santa Felicia Dam

Sun & moon

Sun

Stars tonight? Fair

Moon