Weather in Napa, CA
Napa, Thursday, 15 October, 07:04
Clear. Feels like 44°. High 90°, low 44°.
Monthly outlook for Napa, CA: average high 72.6°, average low 48.3°. That is 0.2° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 16 October (92.9°), the coolest 25 October (41.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 77.4° | 74.4° | +1.6° |
| 25 October – 3 November | 64.8° | 70.3° | -3.1° |
| 4 November – 13 November | at normal | 66° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Fetters Hot Springs (10 mi).
0
Napa, Friday, 16 October
Clear. High 93°, low 55°.
0Napa, Saturday, 17 October
Clear. High 90°, low 59°.
0Napa, Sunday, 18 October
Clear. High 75°, low 51°.
0
Napa, Monday, 19 October
Partly cloudy. High 67°, low 46°.
0.05
Napa, Tuesday, 20 October
Light rain. High 62°, low 48°.
0
Napa, Wednesday, 21 October
Mostly clear. High 71°, low 52°.
0Napa, Thursday, 22 October
Clear. High 74°, low 50°.
0Napa, Friday, 23 October
Clear. High 77°, low 51°.
0Napa, Saturday, 24 October
Partly cloudy. High 74°, low 47°.
0Napa, Sunday, 25 October
Clear. High 63°, low 42°.
0.02Napa, Monday, 26 October
Light rain. High 60°, low 44°.
0Napa, Tuesday, 27 October
Clear. High 63°, low 44°.
0
Napa, Wednesday, 28 October
Overcast. High 64°, low 48°.
0Napa, Thursday, 29 October
Clear. High 71°, low 45°.
0Napa, Friday, 30 October
Clear. High 68°, low 47°.
0.04Napa, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Napa, Sunday, 1 November
Climate normal for this date — 60-year average.
0.05Napa, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Napa, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Napa, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Napa, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Napa, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Napa, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Napa, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Napa, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Napa, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Napa, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08Napa, Thursday, 12 November
Climate normal for this date — 60-year average.
0.17Napa, Friday, 13 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 Napa, 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 Napa, 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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