Weather in Foster City, CA
Foster City, Thursday, 29 October, 20:20
Clear. Feels like 60°. High 69°, low 49°.
Monthly outlook for Foster City, CA: average high 63.7°, average low 53°. That is 0.7° below the climate normal for October. Precipitation is expected on 7 days (about 2.6 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 29 October (69.5°), the coolest 31 October (44.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 64.9° | 66.1° | -0.7° |
| 8 November – 17 November | 61.8° | 62.7° | -0.5° |
| 18 November – 27 November | at normal | 60° | — |
October records over 66 years
0.01
Foster City, Friday, 30 October
Light rain. High 69°, low 49°.
0.02Foster City, Saturday, 31 October
Light rain. High 64°, low 45°.
0.1Foster City, Sunday, 1 November
Light rain. High 62°, low 56°.
0
Foster City, Monday, 2 November
Overcast. High 65°, low 55°.
0
Foster City, Tuesday, 3 November
Partly cloudy. High 68°, low 56°.
0Foster City, Wednesday, 4 November
Overcast. High 64°, low 57°.
0.05Foster City, Thursday, 5 November
Light rain. High 62°, low 56°.
0
Foster City, Friday, 6 November
Clear. High 61°, low 51°.
0Foster City, Saturday, 7 November
Partly cloudy. High 63°, low 52°.
0Foster City, Sunday, 8 November
Overcast. High 64°, low 53°.
0.26Foster City, Monday, 9 November
Rain. High 63°, low 52°.
1.56Foster City, Tuesday, 10 November
Rain. High 64°, low 58°.
0.04Foster City, Wednesday, 11 November
Light rain. High 63°, low 55°.
0.47Foster City, Thursday, 12 November
Rain. High 58°, low 53°.
0.05Foster City, Friday, 13 November
Light rain. High 59°, low 51°.
0.06Foster City, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07
Foster City, Sunday, 15 November
Climate normal for this date — 60-year average.
0.1Foster City, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Foster City, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Foster City, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Foster City, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Foster City, Friday, 20 November
Climate normal for this date — 60-year average.
0.08Foster City, Saturday, 21 November
Climate normal for this date — 60-year average.
0.08Foster City, Sunday, 22 November
Climate normal for this date — 60-year average.
0.05Foster City, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Foster City, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Foster City, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.08Foster City, Thursday, 26 November
Climate normal for this date — 60-year average.
0.07Foster City, Friday, 27 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 Foster City, 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 Foster City, 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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