Weather in Sonoma, CA
Sonoma, Wednesday, 21 October, 05:22
Overcast. Feels like 51°. High 71°, low 53°.
Monthly outlook for Sonoma, CA: average high 70.6°, average low 52.4°. That is 0° below the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 27 October (77.7°), the coolest 4 November (47.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 73° | 71.5° | +0.8° |
| 31 October – 9 November | 66.7° | 68° | -0.7° |
| 10 November – 19 November | at normal | 63.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Boyes Hot Springs (2 mi).
0.04
Sonoma, Thursday, 22 October
Light rain. High 71°, low 54°.
0
Sonoma, Friday, 23 October
Clear. High 74°, low 53°.
0Sonoma, Saturday, 24 October
Clear. High 76°, low 50°.
0Sonoma, Sunday, 25 October
Overcast. High 73°, low 48°.
0Sonoma, Monday, 26 October
Clear. High 70°, low 49°.
0
Sonoma, Tuesday, 27 October
Partly cloudy. High 78°, low 53°.
0Sonoma, Wednesday, 28 October
Overcast. High 77°, low 52°.
0Sonoma, Thursday, 29 October
Overcast. High 76°, low 57°.
0.33Sonoma, Friday, 30 October
Light rain. High 65°, low 59°.
0.04Sonoma, Saturday, 31 October
Light rain. High 68°, low 56°.
1.15Sonoma, Sunday, 1 November
Rain. High 61°, low 57°.
0.01Sonoma, Monday, 2 November
Light rain. High 62°, low 54°.
0Sonoma, Tuesday, 3 November
Clear. High 70°, low 50°.
0Sonoma, Wednesday, 4 November
Clear. High 71°, low 47°.
0Sonoma, Thursday, 5 November
Overcast. High 69°, low 48°.
0.07Sonoma, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Sonoma, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Sonoma, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Sonoma, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Sonoma, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Sonoma, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08
Sonoma, Thursday, 12 November
Climate normal for this date — 60-year average.
0.17Sonoma, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Sonoma, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Sonoma, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Sonoma, Monday, 16 November
Climate normal for this date — 60-year average.
0.14Sonoma, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Sonoma, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Sonoma, Thursday, 19 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 Sonoma, 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 Sonoma, 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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