Weather in Castle Hill, CA
Castle Hill, Tuesday, 20 October, 12:28
Overcast. Feels like 64°. High 67°, low 50°.
Monthly outlook for Castle Hill, CA: average high 73.3°, average low 57°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 28 October (83°), the coolest 20 October (50.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 75.6° | 71.5° | +2.3° |
| 30 October – 8 November | 69.4° | 68.2° | +0.7° |
| 9 November – 18 November | at normal | 64° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Saranap (1 mi).
0Castle Hill, Wednesday, 21 October
Overcast. High 70°, low 56°.
0Castle Hill, Thursday, 22 October
Overcast. High 73°, low 54°.
0
Castle Hill, Friday, 23 October
Clear. High 76°, low 55°.
0Castle Hill, Saturday, 24 October
Clear. High 76°, low 53°.
0Castle Hill, Sunday, 25 October
Clear. High 78°, low 54°.
0Castle Hill, Monday, 26 October
Clear. High 80°, low 59°.
0Castle Hill, Tuesday, 27 October
Overcast. High 80°, low 60°.
0Castle Hill, Wednesday, 28 October
Overcast. High 83°, low 65°.
0Castle Hill, Thursday, 29 October
Overcast. High 73°, low 58°.
0Castle Hill, Friday, 30 October
Overcast. High 70°, low 56°.
0.42
Castle Hill, Saturday, 31 October
Rain. High 73°, low 60°.
0.17Castle Hill, Sunday, 1 November
Rain. High 69°, low 62°.
0Castle Hill, Monday, 2 November
Overcast. High 68°, low 59°.
0Castle Hill, Tuesday, 3 November
Overcast. High 68°, low 57°.
0Castle Hill, Wednesday, 4 November
Clear. High 68°, low 55°.
0.06
Castle Hill, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05Castle Hill, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Castle Hill, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Castle Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08
Castle Hill, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Castle Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Castle Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Castle Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13Castle Hill, Friday, 13 November
Climate normal for this date — 60-year average.
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.
0.07Castle Hill, Wednesday, 18 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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