Weather in Santa Rosa, CA
Santa Rosa, Sunday, 9 August, 11:18
Clear. Feels like 90°. High 89°, low 60°.
Monthly outlook for Santa Rosa, CA: average high 91.8°, average low 59.6°. That is 4.2° above 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 23 August (105.3°), the coolest 12 August (54.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87.2° | 85° | +1.2° |
| 19 August – 28 August | 99.6° | 83.6° | +8.9° |
| 29 August – 7 September | at normal | 85.2° | — |
August records over 66 years
0
Santa Rosa, Monday, 10 August
Mostly clear. High 83°, low 56°.
0Santa Rosa, Tuesday, 11 August
Clear. High 93°, low 55°.
0Santa Rosa, Wednesday, 12 August
Clear. High 91°, low 54°.
0Santa Rosa, Thursday, 13 August
Clear. High 83°, low 55°.
0Santa Rosa, Friday, 14 August
Clear. High 85°, low 57°.
0Santa Rosa, Saturday, 15 August
Clear. High 85°, low 54°.
0.01
Santa Rosa, Sunday, 16 August
Light rain. High 79°, low 56°.
0
Santa Rosa, Monday, 17 August
Overcast. High 92°, low 58°.
0Santa Rosa, Tuesday, 18 August
Clear. High 92°, low 59°.
0Santa Rosa, Wednesday, 19 August
Overcast. High 95°, low 63°.
0Santa Rosa, Thursday, 20 August
Overcast. High 96°, low 63°.
0Santa Rosa, Friday, 21 August
Clear. High 99°, low 64°.
0Santa Rosa, Saturday, 22 August
Mostly clear. High 104°, low 65°.
0Santa Rosa, Sunday, 23 August
Overcast. High 105°, low 68°.
0Santa Rosa, Monday, 24 August
Clear. High 98°, low 68°.
0Santa Rosa, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Santa Rosa, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Santa Rosa, Thursday, 27 August
Climate normal for this date — 60-year average.
0Santa Rosa, Friday, 28 August
Climate normal for this date — 60-year average.
0Santa Rosa, Saturday, 29 August
Climate normal for this date — 60-year average.
0Santa Rosa, Sunday, 30 August
Climate normal for this date — 60-year average.
0.02Santa Rosa, Monday, 31 August
Climate normal for this date — 60-year average.
0Santa Rosa, Tuesday, 1 September
Climate normal for this date — 60-year average.
0Santa Rosa, Wednesday, 2 September
Climate normal for this date — 60-year average.
0Santa Rosa, Thursday, 3 September
Climate normal for this date — 60-year average.
0Santa Rosa, Friday, 4 September
Climate normal for this date — 60-year average.
0Santa Rosa, Saturday, 5 September
Climate normal for this date — 60-year average.
0Santa Rosa, Sunday, 6 September
Climate normal for this date — 60-year average.
0.01Santa Rosa, Monday, 7 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 Santa Rosa, 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 Santa Rosa, 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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