Weather in Walnut Creek, CA
Walnut Creek, Thursday, 12 November, 02:46
Clear. Feels like 57°. High 74°, low 51°.
Monthly outlook for Walnut Creek, CA: average high 60.6°, average low 49.6°. That is 0.9° below the climate normal for November. Precipitation is expected on 6 days (about 2.4 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 12 November (74.3°), the coolest 17 November (44.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 61° | 63.2° | -1.2° |
| 22 November – 1 December | 60° | 60.1° | -0.1° |
| 2 December – 11 December | at normal | 58.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Contra Costa Centre (2 mi).
0.63
Walnut Creek, Friday, 13 November
Heavy rain. High 61°, low 50°.
0
Walnut Creek, Saturday, 14 November
Clear. High 64°, low 47°.
0.37Walnut Creek, Sunday, 15 November
Rain. High 61°, low 52°.
0.01Walnut Creek, Monday, 16 November
Light rain. High 60°, low 47°.
0Walnut Creek, Tuesday, 17 November
Clear. High 61°, low 44°.
0.22Walnut Creek, Wednesday, 18 November
Rain. High 57°, low 51°.
0.02Walnut Creek, Thursday, 19 November
Light rain. High 59°, low 49°.
0.36Walnut Creek, Friday, 20 November
Rain. High 57°, low 50°.
0
Walnut Creek, Saturday, 21 November
Partly cloudy. High 57°, low 46°.
0.48Walnut Creek, Sunday, 22 November
Rain. High 51°, low 46°.
0.01Walnut Creek, Monday, 23 November
Light rain. High 61°, low 50°.
0
Walnut Creek, Tuesday, 24 November
Overcast. High 58°, low 48°.
0Walnut Creek, Wednesday, 25 November
Overcast. High 59°, low 53°.
0.32Walnut Creek, Thursday, 26 November
Rain. High 64°, low 51°.
0.01Walnut Creek, Friday, 27 November
Light rain. High 66°, low 58°.
0.11Walnut Creek, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Walnut Creek, Sunday, 29 November
Climate normal for this date — 60-year average.
0.14Walnut Creek, Monday, 30 November
Climate normal for this date — 60-year average.
0.1Walnut Creek, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.17Walnut Creek, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.13Walnut Creek, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07Walnut Creek, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Walnut Creek, Saturday, 5 December
Climate normal for this date — 60-year average.
0.07Walnut Creek, Sunday, 6 December
Climate normal for this date — 60-year average.
0.07Walnut Creek, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Walnut Creek, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07Walnut Creek, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.1Walnut Creek, Thursday, 10 December
Climate normal for this date — 60-year average.
0.12Walnut Creek, Friday, 11 December
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 Walnut Creek, 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 Walnut Creek, 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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