Weather in Herpoco, CA
Herpoco, Saturday, 8 August, 12:41
Partly cloudy. Feels like 73°. High 74°, low 58°.
Monthly outlook for Herpoco, CA: average high 73.8°, average low 59.7°. That is 3° below the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 9 August (91.7°), the coolest 8 August (57.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 72.8° | 79.7° | -3.8° |
| 18 August – 27 August | 75.4° | 78.8° | -1.9° |
| 28 August – 6 September | at normal | 81.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — San Pablo (5 mi).
0
Herpoco, Sunday, 9 August
Clear. High 92°, low 60°.
0Herpoco, Monday, 10 August
Clear. High 70°, low 59°.
0Herpoco, Tuesday, 11 August
Clear. High 72°, low 59°.
0Herpoco, Wednesday, 12 August
Partly cloudy. High 69°, low 59°.
0Herpoco, Thursday, 13 August
Partly cloudy. High 69°, low 60°.
0
Herpoco, Friday, 14 August
Overcast. High 67°, low 61°.
0Herpoco, Saturday, 15 August
Clear. High 71°, low 59°.
0Herpoco, Sunday, 16 August
Overcast. High 73°, low 59°.
0Herpoco, Monday, 17 August
Overcast. High 71°, low 61°.
0Herpoco, Tuesday, 18 August
Clear. High 78°, low 60°.
0Herpoco, Wednesday, 19 August
Clear. High 77°, low 61°.
0
Herpoco, Thursday, 20 August
Mostly clear. High 73°, low 61°.
0Herpoco, Friday, 21 August
Clear. High 79°, low 61°.
0Herpoco, Saturday, 22 August
Overcast. High 77°, low 61°.
0Herpoco, Sunday, 23 August
Overcast. High 69°, low 59°.
0Herpoco, Monday, 24 August
Climate normal for this date — 60-year average.
0Herpoco, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Herpoco, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Herpoco, Thursday, 27 August
Climate normal for this date — 60-year average.
0Herpoco, Friday, 28 August
Climate normal for this date — 60-year average.
0Herpoco, Saturday, 29 August
Climate normal for this date — 60-year average.
0Herpoco, Sunday, 30 August
Climate normal for this date — 60-year average.
0Herpoco, Monday, 31 August
Climate normal for this date — 60-year average.
0Herpoco, Tuesday, 1 September
Climate normal for this date — 60-year average.
0Herpoco, Wednesday, 2 September
Climate normal for this date — 60-year average.
0Herpoco, Thursday, 3 September
Climate normal for this date — 60-year average.
0Herpoco, Friday, 4 September
Climate normal for this date — 60-year average.
0Herpoco, Saturday, 5 September
Climate normal for this date — 60-year average.
0Herpoco, Sunday, 6 September
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 Herpoco, 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 Herpoco, 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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