As of 10:35 PDT

Weather in Castaic, CA

75°Current weather

Castaic, Saturday, 10 October, 10:35

Overcast. Feels like 74°. High 75°, low 63°.

Pressure29.68 inHg
Wind1.7 mph NE
Humidity47%
Visibility6.2 mi
Dew point53°

Monthly outlook for Castaic, CA: average high 80.2°, average low 59.7°. That is 0.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (91.4°), the coolest 13 October (44°).

80.2°/59.7°
Average high / low
+0.8°
Above normal
1 / 1
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October76.7°79.5°-1.5°
20 October – 29 October86.1°76.5°+5.3°
30 October – 8 Novemberat normal73.3°—

October records over 66 years

108.7°2 October 2024All-time high
32.5°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Santa Clarita (9 mi).

Sun, 1167° / 50°0.21Rain
67 °Rain

Castaic, Sunday, 11 October

Rain. High 67°, low 50°.

Pressure29.68 inHg
Wind11.2 mph S
Humidity71%
Visibility6.2 mi
Dew point55°
Mon, 1257° / 49°0.02Light rain
57 °Light rain

Castaic, Monday, 12 October

Light rain. High 57°, low 49°.

Pressure29.85 inHg
Wind9.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point45°
Tue, 1361° / 44°0Partly cloudy
61 °Partly cloudy

Castaic, Tuesday, 13 October

Partly cloudy. High 61°, low 44°.

Pressure30.00 inHg
Wind7.7 mph S
Humidity48%
Visibility6.2 mi
Dew point42°
Wed, 1475° / 47°0Clear
75 °Clear

Castaic, Wednesday, 14 October

Clear. High 75°, low 47°.

Pressure30.06 inHg
Wind7.6 mph N
Humidity27%
Visibility—
Dew point31°
Thu, 1578° / 53°0Clear
78 °Clear

Castaic, Thursday, 15 October

Clear. High 78°, low 53°.

Pressure30.09 inHg
Wind11.5 mph NE
Humidity25%
Visibility—
Dew point33°
Fri, 1688° / 63°0Clear
88 °Clear

Castaic, Friday, 16 October

Clear. High 88°, low 63°.

Pressure30.03 inHg
Wind18.5 mph NE
Humidity13%
Visibility—
Dew point25°
Sat, 1791° / 68°0Clear
91 °Clear

Castaic, Saturday, 17 October

Clear. High 91°, low 68°.

Pressure30.00 inHg
Wind13.4 mph NE
Humidity13%
Visibility—
Dew point28°
Sun, 1890° / 69°0Clear
90 °Clear

Castaic, Sunday, 18 October

Clear. High 90°, low 69°.

Pressure30.00 inHg
Wind11.3 mph SW
Humidity18%
Visibility—
Dew point36°
Mon, 1983° / 65°0Mostly clear
83 °Mostly clear

Castaic, Monday, 19 October

Mostly clear. High 83°, low 65°.

Pressure30.00 inHg
Wind10.5 mph SW
Humidity33%
Visibility—
Dew point45°
Tue, 2087° / 63°0Clear
87 °Clear

Castaic, Tuesday, 20 October

Clear. High 87°, low 63°.

Pressure29.94 inHg
Wind6.3 mph NE
Humidity14%
Visibility—
Dew point25°
Wed, 2190° / 68°0Clear
90 °Clear

Castaic, Wednesday, 21 October

Clear. High 90°, low 68°.

Pressure29.94 inHg
Wind10.1 mph SW
Humidity15%
Visibility—
Dew point31°
Thu, 2286° / 65°0Clear
86 °Clear

Castaic, Thursday, 22 October

Clear. High 86°, low 65°.

Pressure29.91 inHg
Wind9.9 mph SW
Humidity24%
Visibility—
Dew point40°
Fri, 2380° / 61°0Mostly clear
80 °Mostly clear

Castaic, Friday, 23 October

Mostly clear. High 80°, low 61°.

Pressure29.94 inHg
Wind9.4 mph SW
Humidity43%
Visibility—
Dew point49°
Sat, 2482° / 59°0Clear
82 °Clear

Castaic, Saturday, 24 October

Clear. High 82°, low 59°.

Pressure29.97 inHg
Wind10.3 mph SW
Humidity34%
Visibility—
Dew point44°
Sun, 2591° / 69°0Clear
91 °Clear

Castaic, Sunday, 25 October

Clear. High 91°, low 69°.

Pressure29.97 inHg
Wind15 mph NE
Humidity19%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2676° / 52°0.01Climate normal
76 °Climate normal

Castaic, Monday, 26 October

Climate normal for this date — 60-year average.

Average high76°
Average low52°
Average precipitation0.01 in
Chance of precipitation5%
Record high92° (2017)
Record low41° (1989)
Tue, 2775° / 53°0.04Climate normal
75 °Climate normal

Castaic, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high75°
Average low53°
Average precipitation0.04 in
Chance of precipitation8%
Record high92° (2017)
Record low42° (1982)
Wed, 2875° / 52°0.02Climate normal
75 °Climate normal

Castaic, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high75°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high92° (2017)
Record low42° (1991)
Thu, 2973° / 51°0.01Climate normal
73 °Climate normal

Castaic, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high73°
Average low51°
Average precipitation0.01 in
Chance of precipitation7%
Record high89° (1965)
Record low33° (1971)
Fri, 3073° / 51°0.05Climate normal
73 °Climate normal

Castaic, Friday, 30 October

Climate normal for this date — 60-year average.

Average high73°
Average low51°
Average precipitation0.05 in
Chance of precipitation18%
Record high89° (2025)
Record low33° (1971)
Sat, 3173° / 50°0.02Climate normal
73 °Climate normal

Castaic, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high73°
Average low50°
Average precipitation0.02 in
Chance of precipitation8%
Record high88° (1966)
Record low37° (1972)
Sun, 0174° / 51°0.03Climate normal
74 °Climate normal

Castaic, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high74°
Average low51°
Average precipitation0.03 in
Chance of precipitation10%
Record high88° (1967)
Record low40° (1971)
Mon, 0274° / 50°0.01Climate normal
74 °Climate normal

Castaic, Monday, 2 November

Climate normal for this date — 60-year average.

Average high74°
Average low50°
Average precipitation0.01 in
Chance of precipitation8%
Record high89° (2018)
Record low41° (2003)
Tue, 0375° / 50°0Climate normal
75 °Climate normal

Castaic, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high75°
Average low50°
Average precipitation0 in
Chance of precipitation5%
Record high88° (2010)
Record low36° (1994)
Wed, 0475° / 50°0.02Climate normal
75 °Climate normal

Castaic, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high75°
Average low50°
Average precipitation0.02 in
Chance of precipitation5%
Record high89° (1980)
Record low36° (1994)
Thu, 0574° / 49°0.01Climate normal
74 °Climate normal

Castaic, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high74°
Average low49°
Average precipitation0.01 in
Chance of precipitation3%
Record high88° (2012)
Record low37° (2011)
Fri, 0673° / 50°0.02Climate normal
73 °Climate normal

Castaic, Friday, 6 November

Climate normal for this date — 60-year average.

Average high73°
Average low50°
Average precipitation0.02 in
Chance of precipitation8%
Record high88° (1991)
Record low40° (2011)
Sat, 0771° / 49°0.06Climate normal
71 °Climate normal

Castaic, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high71°
Average low49°
Average precipitation0.06 in
Chance of precipitation12%
Record high89° (2006)
Record low34° (2011)
Sun, 0871° / 49°0.06Climate normal
71 °Climate normal

Castaic, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high71°
Average low49°
Average precipitation0.06 in
Chance of precipitation20%
Record high86° (2014)
Record low37° (2011)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Castaic, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Castaic, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.