Weather in Castle Hill, CA
Castle Hill, Thursday, 29 October, 19:34
Clear. Feels like 57°. High 69°, low 48°.
Monthly outlook for Castle Hill, CA: average high 65.1°, average low 51.2°. That is 1.1° below the climate normal for October. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 30 October (69.3°), the coolest 31 October (45.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 66.8° | 68.5° | -1° |
| 8 November – 17 November | 62.2° | 64.3° | -1.2° |
| 18 November – 27 November | at normal | 61° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Saranap (1 mi).
0
Castle Hill, Friday, 30 October
Partly cloudy. High 69°, low 48°.
0
Castle Hill, Saturday, 31 October
Overcast. High 66°, low 46°.
0.03
Castle Hill, Sunday, 1 November
Light rain. High 65°, low 50°.
0Castle Hill, Monday, 2 November
Overcast. High 69°, low 48°.
0Castle Hill, Tuesday, 3 November
Overcast. High 69°, low 48°.
0Castle Hill, Wednesday, 4 November
Overcast. High 66°, low 54°.
0.04Castle Hill, Thursday, 5 November
Light rain. High 64°, low 54°.
0
Castle Hill, Friday, 6 November
Clear. High 68°, low 49°.
0Castle Hill, Saturday, 7 November
Partly cloudy. High 64°, low 52°.
0Castle Hill, Sunday, 8 November
Overcast. High 66°, low 57°.
0.32Castle Hill, Monday, 9 November
Rain. High 63°, low 53°.
1.89Castle Hill, Tuesday, 10 November
Rain. High 64°, low 57°.
0.04Castle Hill, Wednesday, 11 November
Light rain. High 64°, low 56°.
0.63Castle Hill, Thursday, 12 November
Rain. High 57°, low 51°.
0.01Castle Hill, Friday, 13 November
Light rain. High 60°, low 50°.
0.06Castle Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Castle Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
0.08Castle Hill, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Castle Hill, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07
Castle Hill, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.05Castle Hill, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Castle Hill, Friday, 20 November
Climate normal for this date — 60-year average.
0.08Castle Hill, Saturday, 21 November
Climate normal for this date — 60-year average.
0.09Castle Hill, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Castle Hill, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Castle Hill, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.05Castle Hill, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.05Castle Hill, Thursday, 26 November
Climate normal for this date — 60-year average.
0.07Castle Hill, Friday, 27 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 Castle Hill, 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 Castle Hill, 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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