Weather in Napa, CA
Napa, Sunday, 18 October, 05:53
Clear. Feels like 49°. High 77°, low 47°.
Monthly outlook for Napa, CA: average high 75.3°, average low 53.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 25 October (84.8°), the coolest 19 October (40.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 74.2° | 73.1° | +0.6° |
| 28 October – 6 November | 77.2° | 69.2° | +4.5° |
| 7 November – 16 November | at normal | 64.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Fetters Hot Springs (10 mi).
0
Napa, Monday, 19 October
Clear. High 67°, low 41°.
0.05
Napa, Tuesday, 20 October
Light rain. High 64°, low 45°.
0.26Napa, Wednesday, 21 October
Rain. High 64°, low 52°.
0
Napa, Thursday, 22 October
Overcast. High 69°, low 49°.
0Napa, Friday, 23 October
Clear. High 72°, low 50°.
0Napa, Saturday, 24 October
Clear. High 83°, low 55°.
0Napa, Sunday, 25 October
Clear. High 85°, low 58°.
0Napa, Monday, 26 October
Overcast. High 84°, low 58°.
0Napa, Tuesday, 27 October
Overcast. High 76°, low 59°.
0
Napa, Wednesday, 28 October
Mostly clear. High 79°, low 53°.
0Napa, Thursday, 29 October
Overcast. High 75°, low 53°.
0Napa, Friday, 30 October
Clear. High 82°, low 54°.
0Napa, Saturday, 31 October
Clear. High 81°, low 58°.
0Napa, Sunday, 1 November
Overcast. High 73°, low 59°.
0.04Napa, Monday, 2 November
Light rain. High 74°, low 60°.
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.
0.07
Napa, 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.
0.06Napa, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Napa, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Napa, 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 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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