Weather in Portola, CA
Portola, Wednesday, 4 November, 02:16
Overcast. Feels like 30°. High 53°, low 30°.
Monthly outlook for Portola, CA: average high 61.2°, average low 35.8°. That is 7.1° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 15 November (66.4°), the coolest 4 November (30.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 4 November – 13 November | 60.9° | 50° | +6° |
| 14 November – 23 November | 61.7° | 44.7° | +9.5° |
| 24 November – 3 December | at normal | 40.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Beckwourth (4 mi).
0
Portola, Thursday, 5 November
Clear. High 56°, low 34°.
0Portola, Friday, 6 November
Overcast. High 59°, low 35°.
0Portola, Saturday, 7 November
Clear. High 63°, low 36°.
0Portola, Sunday, 8 November
Overcast. High 64°, low 40°.
0Portola, Monday, 9 November
Overcast. High 62°, low 37°.
0Portola, Tuesday, 10 November
Overcast. High 66°, low 40°.
0
Portola, Wednesday, 11 November
Partly cloudy. High 65°, low 38°.
0Portola, Thursday, 12 November
Overcast. High 58°, low 38°.
0Portola, Friday, 13 November
Clear. High 63°, low 35°.
0Portola, Saturday, 14 November
Clear. High 63°, low 35°.
0Portola, Sunday, 15 November
Overcast. High 66°, low 36°.
0Portola, Monday, 16 November
Overcast. High 60°, low 37°.
0Portola, Tuesday, 17 November
Overcast. High 62°, low 35°.
0
Portola, Wednesday, 18 November
Mostly clear. High 62°, low 32°.
0Portola, Thursday, 19 November
Overcast. High 58°, low 36°.
0.16
Portola, Friday, 20 November
Climate normal for this date — 60-year average.
0.18Portola, Saturday, 21 November
Climate normal for this date — 60-year average.
0.15Portola, Sunday, 22 November
Climate normal for this date — 60-year average.
0.17Portola, Monday, 23 November
Climate normal for this date — 60-year average.
0.15Portola, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12Portola, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.11Portola, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Portola, Friday, 27 November
Climate normal for this date — 60-year average.
0.12Portola, Saturday, 28 November
Climate normal for this date — 60-year average.
0.17Portola, Sunday, 29 November
Climate normal for this date — 60-year average.
0.17Portola, Monday, 30 November
Climate normal for this date — 60-year average.
0.22Portola, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.23Portola, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.21Portola, Thursday, 3 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 Portola, 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 Portola, 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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