Weather in Greenbrae, CA
Greenbrae, Tuesday, 20 October, 07:58
Overcast. Feels like 52°. High 70°, low 52°.
Monthly outlook for Greenbrae, CA: average high 67.3°, average low 56.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 24 October (74.3°), the coolest 23 October (50.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 70° | 67.7° | +1.3° |
| 30 October – 8 November | 62.6° | 65.3° | -1.5° |
| 9 November – 18 November | at normal | 61.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Marin City (5 mi).
0Greenbrae, Wednesday, 21 October
Overcast. High 71°, low 56°.
0.01
Greenbrae, Thursday, 22 October
Light rain. High 70°, low 52°.
0
Greenbrae, Friday, 23 October
Partly cloudy. High 73°, low 51°.
0
Greenbrae, Saturday, 24 October
Mostly clear. High 74°, low 52°.
0
Greenbrae, Sunday, 25 October
Clear. High 74°, low 52°.
0Greenbrae, Monday, 26 October
Clear. High 68°, low 58°.
0Greenbrae, Tuesday, 27 October
Overcast. High 69°, low 60°.
0Greenbrae, Wednesday, 28 October
Overcast. High 68°, low 61°.
0Greenbrae, Thursday, 29 October
Overcast. High 64°, low 57°.
0.02Greenbrae, Friday, 30 October
Light rain. High 62°, low 56°.
0.68Greenbrae, Saturday, 31 October
Rain. High 65°, low 59°.
0.68Greenbrae, Sunday, 1 November
Light rain. High 63°, low 60°.
0.06Greenbrae, Monday, 2 November
Light rain. High 62°, low 58°.
0Greenbrae, Tuesday, 3 November
Overcast. High 62°, low 57°.
0Greenbrae, Wednesday, 4 November
Clear. High 62°, low 56°.
0.06Greenbrae, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Greenbrae, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Greenbrae, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08Greenbrae, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Greenbrae, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Greenbrae, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Greenbrae, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08Greenbrae, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14Greenbrae, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Greenbrae, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Greenbrae, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Greenbrae, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Greenbrae, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Greenbrae, Wednesday, 18 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 Greenbrae, 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 Greenbrae, 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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