Weather in San Dimas, CA
San Dimas, Sunday, 25 October, 20:25
Mostly clear. Feels like 67°. High 78°, low 55°.
Monthly outlook for San Dimas, CA: average high 71.6°, average low 59.8°. That is 2.4° below the climate normal for October. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 26 October (80.2°), the coolest 30 October (54.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 70.4° | 76.9° | -3.6° |
| 4 November – 13 November | 73.6° | 73.6° | +0° |
| 14 November – 23 November | at normal | 70.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Covina (4 mi).
0
San Dimas, Monday, 26 October
Clear. High 80°, low 58°.
0San Dimas, Tuesday, 27 October
Clear. High 72°, low 57°.
0San Dimas, Wednesday, 28 October
Clear. High 72°, low 56°.
0.01
San Dimas, Thursday, 29 October
Light rain. High 69°, low 57°.
0.35San Dimas, Friday, 30 October
Rain. High 64°, low 54°.
0.1San Dimas, Saturday, 31 October
Light rain. High 66°, low 55°.
0.59San Dimas, Sunday, 1 November
Rain. High 65°, low 58°.
0.17San Dimas, Monday, 2 November
Light rain. High 70°, low 66°.
0.42San Dimas, Tuesday, 3 November
Rain. High 66°, low 62°.
0
San Dimas, Wednesday, 4 November
Overcast. High 73°, low 62°.
0
San Dimas, Thursday, 5 November
Partly cloudy. High 74°, low 63°.
0.01San Dimas, Friday, 6 November
Light rain. High 73°, low 64°.
0San Dimas, Saturday, 7 November
Clear. High 76°, low 63°.
0
San Dimas, Sunday, 8 November
Mostly clear. High 74°, low 64°.
0San Dimas, Monday, 9 November
Overcast. High 72°, low 62°.
0.03San Dimas, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05San Dimas, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03San Dimas, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03San Dimas, Friday, 13 November
Climate normal for this date — 60-year average.
0.05San Dimas, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08San Dimas, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06San Dimas, Monday, 16 November
Climate normal for this date — 60-year average.
0.04San Dimas, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05San Dimas, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.05San Dimas, Thursday, 19 November
Climate normal for this date — 60-year average.
0.06San Dimas, Friday, 20 November
Climate normal for this date — 60-year average.
0.1San Dimas, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06San Dimas, Sunday, 22 November
Climate normal for this date — 60-year average.
0.01San Dimas, Monday, 23 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 San Dimas, 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 San Dimas, 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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