Weather in Mount Wilson, CA
Mount Wilson, Saturday, 24 October, 23:11
Clear. Feels like 47°. High 61°, low 40°.
Monthly outlook for Mount Wilson, CA: average high 58.4°, average low 43.5°. That is 9.3° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 1 days and 0.5 inches. The warmest day looks like 7 November (70.3°), the coolest 29 October (37.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 54.6° | 75.9° | -11.8° |
| 3 November – 12 November | 64.8° | 72.8° | -4.4° |
| 13 November – 22 November | at normal | 69.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Altadena (5 mi).
0
Mount Wilson, Sunday, 25 October
Clear. High 65°, low 43°.
0Mount Wilson, Monday, 26 October
Clear. High 62°, low 43°.
0Mount Wilson, Tuesday, 27 October
Clear. High 55°, low 41°.
0Mount Wilson, Wednesday, 28 October
Clear. High 55°, low 42°.
0
Mount Wilson, Thursday, 29 October
Overcast. High 53°, low 37°.
0.02
Mount Wilson, Friday, 30 October
Light rain. High 47°, low 39°.
0.04Mount Wilson, Saturday, 31 October
Light rain. High 45°, low 40°.
0.21Mount Wilson, Sunday, 1 November
Light rain. High 45°, low 38°.
0Mount Wilson, Monday, 2 November
Clear. High 57°, low 37°.
0Mount Wilson, Tuesday, 3 November
Clear. High 62°, low 46°.
0Mount Wilson, Wednesday, 4 November
Clear. High 62°, low 48°.
0Mount Wilson, Thursday, 5 November
Clear. High 61°, low 47°.
0Mount Wilson, Friday, 6 November
Clear. High 64°, low 48°.
0Mount Wilson, Saturday, 7 November
Clear. High 70°, low 52°.
0Mount Wilson, Sunday, 8 November
Clear. High 70°, low 55°.
0.04
Mount Wilson, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Mount Wilson, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Mount Wilson, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Mount Wilson, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Mount Wilson, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Mount Wilson, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Mount Wilson, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Mount Wilson, Monday, 16 November
Climate normal for this date — 60-year average.
0.05Mount Wilson, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Mount Wilson, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.05Mount Wilson, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Mount Wilson, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Mount Wilson, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06Mount Wilson, Sunday, 22 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 Mount Wilson, 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 Mount Wilson, 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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