Weather in Westmont, CA
Westmont, Saturday, 17 October, 04:26
Clear. Feels like 75°. High 92°, low 76°.
Monthly outlook for Westmont, CA: average high 76.1°, average low 64.6°. That is 0.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (91.7°), the coolest 30 October (58.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 78.7° | 76.6° | +1.2° |
| 27 October – 5 November | 71.8° | 74.5° | -1.5° |
| 6 November – 15 November | at normal | 71.4° | — |
October records over 66 years
0
Westmont, Sunday, 18 October
Clear. High 89°, low 68°.
0Westmont, Monday, 19 October
Clear. High 81°, low 62°.
0Westmont, Tuesday, 20 October
Clear. High 77°, low 61°.
0.23
Westmont, Wednesday, 21 October
Light rain. High 72°, low 60°.
0.22Westmont, Thursday, 22 October
Rain. High 70°, low 59°.
0Westmont, Friday, 23 October
Clear. High 72°, low 65°.
0Westmont, Saturday, 24 October
Clear. High 76°, low 66°.
0
Westmont, Sunday, 25 October
Overcast. High 79°, low 68°.
0Westmont, Monday, 26 October
Overcast. High 79°, low 70°.
0Westmont, Tuesday, 27 October
Clear. High 76°, low 68°.
0Westmont, Wednesday, 28 October
Clear. High 73°, low 67°.
0.15Westmont, Thursday, 29 October
Light rain. High 68°, low 60°.
0Westmont, Friday, 30 October
Clear. High 68°, low 59°.
0Westmont, Saturday, 31 October
Clear. High 70°, low 62°.
0Westmont, Sunday, 1 November
Clear. High 75°, low 65°.
0.01
Westmont, Monday, 2 November
Climate normal for this date — 60-year average.
0Westmont, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Westmont, Wednesday, 4 November
Climate normal for this date — 60-year average.
0Westmont, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Westmont, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Westmont, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Westmont, Sunday, 8 November
Climate normal for this date — 60-year average.
0.03Westmont, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Westmont, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Westmont, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Westmont, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Westmont, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Westmont, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Westmont, Sunday, 15 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 Westmont, 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 Westmont, 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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