Weather in Sunnyvale, CA
Sunnyvale, Saturday, 31 October, 13:32
Overcast. Feels like 64°. High 65°, low 50°.
Monthly outlook for Sunnyvale, CA: average high 67.2°, average low 52.7°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 7 November (78°), the coolest 5 November (48.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 69.5° | 67.5° | +1.1° |
| 10 November – 19 November | 63.3° | 63.4° | -0.1° |
| 20 November – 29 November | at normal | 60.4° | — |
October records over 66 years
0.06
Sunnyvale, Sunday, 1 November
Rain. High 65°, low 50°.
0Sunnyvale, Monday, 2 November
Overcast. High 67°, low 49°.
0.03Sunnyvale, Tuesday, 3 November
Light rain. High 67°, low 50°.
0
Sunnyvale, Wednesday, 4 November
Clear. High 66°, low 51°.
0Sunnyvale, Thursday, 5 November
Overcast. High 69°, low 48°.
0
Sunnyvale, Friday, 6 November
Partly cloudy. High 73°, low 51°.
0Sunnyvale, Saturday, 7 November
Clear. High 78°, low 58°.
0Sunnyvale, Sunday, 8 November
Clear. High 74°, low 58°.
0Sunnyvale, Monday, 9 November
Overcast. High 71°, low 57°.
0.48Sunnyvale, Tuesday, 10 November
Heavy rain. High 68°, low 58°.
1.15Sunnyvale, Wednesday, 11 November
Heavy rain. High 59°, low 53°.
0.1Sunnyvale, Thursday, 12 November
Light rain. High 60°, low 51°.
0
Sunnyvale, Friday, 13 November
Mostly clear. High 63°, low 49°.
0Sunnyvale, Saturday, 14 November
Overcast. High 66°, low 53°.
0Sunnyvale, Sunday, 15 November
Overcast. High 65°, low 56°.
0.1Sunnyvale, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Sunnyvale, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Sunnyvale, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.03Sunnyvale, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Sunnyvale, Friday, 20 November
Climate normal for this date — 60-year average.
0.07Sunnyvale, Saturday, 21 November
Climate normal for this date — 60-year average.
0.07Sunnyvale, Sunday, 22 November
Climate normal for this date — 60-year average.
0.04Sunnyvale, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Sunnyvale, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.05Sunnyvale, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.07Sunnyvale, Thursday, 26 November
Climate normal for this date — 60-year average.
0.06Sunnyvale, Friday, 27 November
Climate normal for this date — 60-year average.
0.11Sunnyvale, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Sunnyvale, Sunday, 29 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 Sunnyvale, 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 Sunnyvale, 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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