Weather in Castaic, CA
Castaic, Saturday, 10 October, 15:33
Overcast. Feels like 76°. High 75°, low 63°.
Monthly outlook for Castaic, CA: average high 81.5°, average low 60.7°. That is 1.5° 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 23 October (91.5°), the coolest 13 October (43.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 78.3° | 79.5° | -0.6° |
| 20 October – 29 October | 86.7° | 76.5° | +5.7° |
| 30 October – 8 November | at normal | 73.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Santa Clarita (9 mi).
0.02
Castaic, Sunday, 11 October
Light rain. High 68°, low 52°.
0.03Castaic, Monday, 12 October
Light rain. High 59°, low 46°.
0
Castaic, Tuesday, 13 October
Mostly clear. High 68°, low 43°.
0
Castaic, Wednesday, 14 October
Clear. High 77°, low 50°.
0Castaic, Thursday, 15 October
Clear. High 80°, low 55°.
0Castaic, Friday, 16 October
Clear. High 88°, low 59°.
0Castaic, Saturday, 17 October
Clear. High 88°, low 67°.
0Castaic, Sunday, 18 October
Clear. High 91°, low 69°.
0Castaic, Monday, 19 October
Clear. High 88°, low 67°.
0Castaic, Tuesday, 20 October
Clear. High 87°, low 67°.
0Castaic, Wednesday, 21 October
Clear. High 87°, low 63°.
0Castaic, Thursday, 22 October
Clear. High 90°, low 68°.
0Castaic, Friday, 23 October
Clear. High 92°, low 69°.
0Castaic, Saturday, 24 October
Overcast. High 87°, low 70°.
0.14Castaic, Sunday, 25 October
Light rain. High 77°, low 63°.
0.01Castaic, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Castaic, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.02Castaic, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.01Castaic, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05Castaic, Friday, 30 October
Climate normal for this date — 60-year average.
0.02Castaic, Saturday, 31 October
Climate normal for this date — 60-year average.
0.03Castaic, Sunday, 1 November
Climate normal for this date — 60-year average.
0.01Castaic, Monday, 2 November
Climate normal for this date — 60-year average.
0Castaic, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Castaic, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.01Castaic, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Castaic, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Castaic, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06
Castaic, Sunday, 8 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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