Weather in San Leandro, CA
San Leandro, Sunday, 11 October, 02:48
Overcast. Feels like 52°. High 70°, low 51°.
Monthly outlook for San Leandro, CA: average high 75.3°, average low 55.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 17 October (86.7°), the coolest 13 October (49.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 75.3° | 73.6° | +0.9° |
| 21 October – 30 October | 75.5° | 69.9° | +3.1° |
| 31 October – 9 November | at normal | 67° | — |
October records over 66 years
0
San Leandro, Monday, 12 October
Clear. High 69°, low 50°.
0
San Leandro, Tuesday, 13 October
Mostly clear. High 70°, low 50°.
0San Leandro, Wednesday, 14 October
Mostly clear. High 71°, low 52°.
0
San Leandro, Thursday, 15 October
Partly cloudy. High 77°, low 54°.
0San Leandro, Friday, 16 October
Clear. High 82°, low 59°.
0San Leandro, Saturday, 17 October
Clear. High 87°, low 65°.
0San Leandro, Sunday, 18 October
Clear. High 80°, low 59°.
0San Leandro, Monday, 19 October
Partly cloudy. High 72°, low 56°.
0San Leandro, Tuesday, 20 October
Mostly clear. High 74°, low 55°.
0San Leandro, Wednesday, 21 October
Overcast. High 75°, low 55°.
0San Leandro, Thursday, 22 October
Overcast. High 70°, low 55°.
0San Leandro, Friday, 23 October
Clear. High 70°, low 56°.
0San Leandro, Saturday, 24 October
Clear. High 77°, low 55°.
0San Leandro, Sunday, 25 October
Clear. High 80°, low 59°.
0San Leandro, Monday, 26 October
Clear. High 81°, low 61°.
0.02San Leandro, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.07San Leandro, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.05San Leandro, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05San Leandro, Friday, 30 October
Climate normal for this date — 60-year average.
0.02San Leandro, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04San Leandro, Sunday, 1 November
Climate normal for this date — 60-year average.
0.03San Leandro, Monday, 2 November
Climate normal for this date — 60-year average.
0.03San Leandro, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03San Leandro, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05San Leandro, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05San Leandro, Friday, 6 November
Climate normal for this date — 60-year average.
0.06San Leandro, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07San Leandro, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08San Leandro, Monday, 9 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 Leandro, 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 Leandro, 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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