Weather in Upper Aliso, CA
Upper Aliso, Thursday, 22 October, 02:24
Overcast. Feels like 60°. High 62°, low 54°.
Monthly outlook for Upper Aliso, CA: average high 72.1°, average low 59.6°. That is 0.4° below the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 5 November (80.9°), the coolest 23 October (51.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 70.5° | 73.2° | -1.5° |
| 1 November – 10 November | 74.7° | 71° | +2° |
| 11 November – 20 November | at normal | 69.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mission Viejo (6 mi).
0
Upper Aliso, Friday, 23 October
Mostly clear. High 65°, low 52°.
0
Upper Aliso, Saturday, 24 October
Clear. High 72°, low 55°.
0Upper Aliso, Sunday, 25 October
Clear. High 73°, low 60°.
0Upper Aliso, Monday, 26 October
Overcast. High 76°, low 61°.
0Upper Aliso, Tuesday, 27 October
Clear. High 75°, low 61°.
0Upper Aliso, Wednesday, 28 October
Overcast. High 73°, low 61°.
0Upper Aliso, Thursday, 29 October
Overcast. High 70°, low 59°.
0Upper Aliso, Friday, 30 October
Mostly clear. High 70°, low 58°.
0Upper Aliso, Saturday, 31 October
Overcast. High 68°, low 57°.
0.12
Upper Aliso, Sunday, 1 November
Light rain. High 65°, low 58°.
0.04Upper Aliso, Monday, 2 November
Light rain. High 72°, low 60°.
0
Upper Aliso, Tuesday, 3 November
Partly cloudy. High 76°, low 65°.
0Upper Aliso, Wednesday, 4 November
Clear. High 79°, low 64°.
0Upper Aliso, Thursday, 5 November
Clear. High 81°, low 66°.
0Upper Aliso, Friday, 6 November
Overcast. High 75°, low 64°.
0.06Upper Aliso, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08Upper Aliso, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Upper Aliso, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Upper Aliso, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Upper Aliso, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Upper Aliso, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Upper Aliso, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Upper Aliso, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Upper Aliso, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Upper Aliso, Monday, 16 November
Climate normal for this date — 60-year average.
0.03Upper Aliso, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Upper Aliso, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Upper Aliso, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Upper Aliso, Friday, 20 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 Upper Aliso, 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 Upper Aliso, 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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