Weather in San Francisco, CA
San Francisco, Tuesday, 13 October, 00:00
Clear. Feels like 52°. High 69°, low 48°.
Monthly outlook for San Francisco, CA: average high 66.2°, average low 56.2°. That is 0.4° below the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 25 October (74.3°), the coolest 13 October (47.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 64.1° | 67.5° | -1.9° |
| 23 October – 1 November | 69.7° | 65.2° | +2.5° |
| 2 November – 11 November | at normal | 62.4° | — |
October records over 66 years
0
San Francisco, Wednesday, 14 October
Overcast. High 65°, low 49°.
0
San Francisco, Thursday, 15 October
Clear. High 74°, low 54°.
0San Francisco, Friday, 16 October
Clear. High 73°, low 62°.
0
San Francisco, Saturday, 17 October
Partly cloudy. High 64°, low 58°.
0San Francisco, Sunday, 18 October
Clear. High 61°, low 57°.
0.04
San Francisco, Monday, 19 October
Light rain. High 59°, low 56°.
0.19San Francisco, Tuesday, 20 October
Rain. High 57°, low 53°.
0San Francisco, Wednesday, 21 October
Clear. High 58°, low 52°.
0San Francisco, Thursday, 22 October
Clear. High 60°, low 54°.
0San Francisco, Friday, 23 October
Clear. High 63°, low 56°.
0San Francisco, Saturday, 24 October
Clear. High 71°, low 59°.
0
San Francisco, Sunday, 25 October
Mostly clear. High 74°, low 61°.
0San Francisco, Monday, 26 October
Clear. High 73°, low 62°.
0San Francisco, Tuesday, 27 October
Clear. High 71°, low 60°.
0San Francisco, Wednesday, 28 October
Clear. High 65°, low 59°.
0.05San Francisco, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05San Francisco, Friday, 30 October
Climate normal for this date — 60-year average.
0.02San Francisco, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04San Francisco, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02San Francisco, Monday, 2 November
Climate normal for this date — 60-year average.
0.03San Francisco, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03San Francisco, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06San Francisco, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05San Francisco, Friday, 6 November
Climate normal for this date — 60-year average.
0.06San Francisco, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07San Francisco, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07San Francisco, Monday, 9 November
Climate normal for this date — 60-year average.
0.11San Francisco, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08San Francisco, Wednesday, 11 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 Francisco, 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 Francisco, 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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