Weather in San Ramon, CA
San Ramon, Wednesday, 21 October, 01:22
Overcast. Feels like 56°. High 67°, low 54°.
Monthly outlook for San Ramon, CA: average high 75.2°, average low 54.6°. That is 3.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 27 October (83.4°), the coolest 24 October (47.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 73.4° | 69.7° | +2.1° |
| 31 October – 9 November | 78.3° | 66.8° | +6.4° |
| 10 November – 19 November | at normal | 63° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Cherryland (11 mi).
0.31
San Ramon, Thursday, 22 October
Rain. High 66°, low 53°.
0San Ramon, Friday, 23 October
Overcast. High 66°, low 51°.
0
San Ramon, Saturday, 24 October
Clear. High 70°, low 47°.
0
San Ramon, Sunday, 25 October
Partly cloudy. High 73°, low 51°.
0San Ramon, Monday, 26 October
Overcast. High 80°, low 54°.
0San Ramon, Tuesday, 27 October
Overcast. High 83°, low 59°.
0San Ramon, Wednesday, 28 October
Overcast. High 81°, low 60°.
0San Ramon, Thursday, 29 October
Overcast. High 79°, low 58°.
0San Ramon, Friday, 30 October
Overcast. High 70°, low 52°.
0San Ramon, Saturday, 31 October
Clear. High 74°, low 49°.
0San Ramon, Sunday, 1 November
Clear. High 80°, low 51°.
0San Ramon, Monday, 2 November
Overcast. High 81°, low 56°.
0San Ramon, Tuesday, 3 November
Partly cloudy. High 82°, low 60°.
0San Ramon, Wednesday, 4 November
Overcast. High 79°, low 59°.
0San Ramon, Thursday, 5 November
Overcast. High 74°, low 59°.
0.04
San Ramon, Friday, 6 November
Climate normal for this date — 60-year average.
0.06San Ramon, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07San Ramon, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07San Ramon, Monday, 9 November
Climate normal for this date — 60-year average.
0.09San Ramon, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08San Ramon, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06San Ramon, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13San Ramon, Friday, 13 November
Climate normal for this date — 60-year average.
0.06San Ramon, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05San Ramon, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09San Ramon, Monday, 16 November
Climate normal for this date — 60-year average.
0.11San Ramon, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07San Ramon, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04San Ramon, Thursday, 19 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 Ramon, 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 Ramon, 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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