Weather in San Marcos, CA
San Marcos, Saturday, 14 November, 04:43
Overcast. Feels like 61°. High 69°, low 57°.
Monthly outlook for San Marcos, CA: average high 68.1°, average low 55.9°. That is 0.3° above the climate normal for November. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 22 November (72°), the coolest 18 November (48.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 67.9° | 68.1° | -0.1° |
| 24 November – 3 December | 68.3° | 66.2° | +1.2° |
| 4 December – 13 December | at normal | 64.2° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Vista (5 mi).
0
San Marcos, Sunday, 15 November
Clear. High 71°, low 51°.
0.13
San Marcos, Monday, 16 November
Light rain. High 68°, low 56°.
0.36San Marcos, Tuesday, 17 November
Rain. High 64°, low 54°.
0
San Marcos, Wednesday, 18 November
Partly cloudy. High 65°, low 48°.
0.54San Marcos, Thursday, 19 November
Rain. High 63°, low 54°.
0.06San Marcos, Friday, 20 November
Light rain. High 65°, low 57°.
0San Marcos, Saturday, 21 November
Clear. High 72°, low 55°.
0San Marcos, Sunday, 22 November
Overcast. High 72°, low 58°.
0San Marcos, Monday, 23 November
Overcast. High 69°, low 60°.
0San Marcos, Tuesday, 24 November
Clear. High 71°, low 57°.
0.59San Marcos, Wednesday, 25 November
Rain. High 71°, low 57°.
0.04San Marcos, Thursday, 26 November
Light rain. High 67°, low 59°.
0San Marcos, Friday, 27 November
Light rain. High 67°, low 57°.
0San Marcos, Saturday, 28 November
Overcast. High 66°, low 56°.
0San Marcos, Sunday, 29 November
Overcast. High 68°, low 58°.
0.09
San Marcos, Monday, 30 November
Climate normal for this date — 60-year average.
0.02San Marcos, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.01San Marcos, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.05San Marcos, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07San Marcos, Friday, 4 December
Climate normal for this date — 60-year average.
0.06San Marcos, Saturday, 5 December
Climate normal for this date — 60-year average.
0.1San Marcos, Sunday, 6 December
Climate normal for this date — 60-year average.
0.1San Marcos, Monday, 7 December
Climate normal for this date — 60-year average.
0.05San Marcos, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.02San Marcos, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03San Marcos, Thursday, 10 December
Climate normal for this date — 60-year average.
0.06San Marcos, Friday, 11 December
Climate normal for this date — 60-year average.
0.05San Marcos, Saturday, 12 December
Climate normal for this date — 60-year average.
0.04San Marcos, Sunday, 13 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 Marcos, 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 Marcos, 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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