Weather in Diablo, CA
Diablo, Sunday, 18 October, 07:58
Clear. Feels like 57°. High 76°, low 47°.
Monthly outlook for Diablo, CA: average high 68.3°, average low 51.2°. That is 1.6° below the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 25 October (79.6°), the coolest 19 October (42.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 69.4° | 72.5° | -1.7° |
| 28 October – 6 November | 66.5° | 68.8° | -1.3° |
| 7 November – 16 November | at normal | 64.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Saranap (7 mi).
0
Diablo, Monday, 19 October
Partly cloudy. High 66°, low 42°.
0.18
Diablo, Tuesday, 20 October
Rain. High 63°, low 50°.
0.6Diablo, Wednesday, 21 October
Heavy rain. High 65°, low 54°.
0.14Diablo, Thursday, 22 October
Light rain. High 60°, low 53°.
0
Diablo, Friday, 23 October
Mostly clear. High 67°, low 50°.
0Diablo, Saturday, 24 October
Clear. High 76°, low 54°.
0Diablo, Sunday, 25 October
Clear. High 80°, low 57°.
0Diablo, Monday, 26 October
Clear. High 72°, low 53°.
0Diablo, Tuesday, 27 October
Clear. High 69°, low 50°.
0
Diablo, Wednesday, 28 October
Overcast. High 67°, low 49°.
0Diablo, Thursday, 29 October
Overcast. High 66°, low 51°.
0Diablo, Friday, 30 October
Partly cloudy. High 67°, low 49°.
0Diablo, Saturday, 31 October
Overcast. High 70°, low 50°.
0.8Diablo, Sunday, 1 November
Rain. High 58°, low 53°.
0.06Diablo, Monday, 2 November
Light rain. High 71°, low 59°.
0.04Diablo, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Diablo, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Diablo, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05Diablo, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Diablo, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Diablo, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Diablo, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Diablo, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Diablo, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Diablo, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13Diablo, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Diablo, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Diablo, Sunday, 15 November
Climate normal for this date — 60-year average.
0.08Diablo, Monday, 16 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 Diablo, 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 Diablo, 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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