Weather in Castaic, CA
Castaic, Saturday, 8 August, 12:41
Clear. Feels like 93°. High 96°, low 65°.
Monthly outlook for Castaic, CA: average high 94.7°, average low 68°. That is 2.9° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 10 August (98.4°), the coolest 14 August (63.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 93.4° | 90.1° | +1.8° |
| 18 August – 27 August | 97° | 89.4° | +4.2° |
| 28 August – 6 September | at normal | 91.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Santa Clarita (9 mi).
0
Castaic, Sunday, 9 August
Mostly clear. High 94°, low 67°.
0
Castaic, Monday, 10 August
Overcast. High 98°, low 67°.
0
Castaic, Tuesday, 11 August
Partly cloudy. High 94°, low 69°.
0Castaic, Wednesday, 12 August
Mostly clear. High 92°, low 67°.
0Castaic, Thursday, 13 August
Overcast. High 89°, low 63°.
0Castaic, Friday, 14 August
Overcast. High 87°, low 63°.
0Castaic, Saturday, 15 August
Clear. High 93°, low 65°.
0Castaic, Sunday, 16 August
Overcast. High 95°, low 70°.
0Castaic, Monday, 17 August
Partly cloudy. High 95°, low 68°.
0Castaic, Tuesday, 18 August
Partly cloudy. High 97°, low 74°.
0Castaic, Wednesday, 19 August
Overcast. High 98°, low 73°.
0Castaic, Thursday, 20 August
Clear. High 98°, low 70°.
0Castaic, Friday, 21 August
Clear. High 98°, low 70°.
0Castaic, Saturday, 22 August
Overcast. High 95°, low 69°.
0.01
Castaic, Sunday, 23 August
Light rain. High 96°, low 67°.
0Castaic, Monday, 24 August
Climate normal for this date — 60-year average.
0Castaic, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Castaic, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Castaic, Thursday, 27 August
Climate normal for this date — 60-year average.
0Castaic, Friday, 28 August
Climate normal for this date — 60-year average.
0Castaic, Saturday, 29 August
Climate normal for this date — 60-year average.
0Castaic, Sunday, 30 August
Climate normal for this date — 60-year average.
0Castaic, Monday, 31 August
Climate normal for this date — 60-year average.
0.01Castaic, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.01Castaic, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Castaic, Thursday, 3 September
Climate normal for this date — 60-year average.
0.01Castaic, Friday, 4 September
Climate normal for this date — 60-year average.
0.02Castaic, Saturday, 5 September
Climate normal for this date — 60-year average.
0.01Castaic, Sunday, 6 September
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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