Weather in San Dimas, CA
San Dimas, Wednesday, 11 November, 15:05
Clear. Feels like 82°. High 84°, low 56°.
Monthly outlook for San Dimas, CA: average high 67.9°, average low 54.5°. That is 1.6° below the climate normal for November. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 11 November (84.3°), the coolest 17 November (45.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 66.4° | 71.7° | -2.9° |
| 21 November – 30 November | 70.4° | 68.5° | +1.1° |
| 1 December – 10 December | at normal | 66.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Covina (4 mi).
0San Dimas, Thursday, 12 November
Clear. High 81°, low 57°.
0.28
San Dimas, Friday, 13 November
Rain. High 63°, low 53°.
0.31San Dimas, Saturday, 14 November
Heavy rain. High 63°, low 49°.
0
San Dimas, Sunday, 15 November
Overcast. High 66°, low 47°.
0.74San Dimas, Monday, 16 November
Rain. High 57°, low 49°.
0.35San Dimas, Tuesday, 17 November
Light rain. High 61°, low 46°.
0
San Dimas, Wednesday, 18 November
Mostly clear. High 65°, low 57°.
0.02San Dimas, Thursday, 19 November
Light rain. High 61°, low 58°.
0.02San Dimas, Friday, 20 November
Light rain. High 63°, low 54°.
0San Dimas, Saturday, 21 November
Clear. High 63°, low 53°.
0San Dimas, Sunday, 22 November
Clear. High 67°, low 54°.
0San Dimas, Monday, 23 November
Clear. High 71°, low 57°.
0San Dimas, Tuesday, 24 November
Clear. High 74°, low 59°.
0San Dimas, Wednesday, 25 November
Overcast. High 72°, low 61°.
0San Dimas, Thursday, 26 November
Clear. High 75°, low 61°.
0.03San Dimas, Friday, 27 November
Climate normal for this date — 60-year average.
0.07San Dimas, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11San Dimas, Sunday, 29 November
Climate normal for this date — 60-year average.
0.05
San Dimas, Monday, 30 November
Climate normal for this date — 60-year average.
0.02San Dimas, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03San Dimas, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08San Dimas, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09San Dimas, Friday, 4 December
Climate normal for this date — 60-year average.
0.07San Dimas, Saturday, 5 December
Climate normal for this date — 60-year average.
0.12San Dimas, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11San Dimas, Monday, 7 December
Climate normal for this date — 60-year average.
0.02San Dimas, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.03San Dimas, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03San Dimas, Thursday, 10 December
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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