Weather in Alta, CA
Alta, Wednesday, 7 October, 18:37
Clear. Feels like 79°. High 87°, low 55°.
Monthly outlook for Alta, CA: average high 76.6°, average low 53.4°. That is 2.5° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 1.2 inches. The warmest day looks like 9 October (88.7°), the coolest 15 October (43.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 75° | 73.2° | +1° |
| 17 October – 26 October | 79.3° | 69.5° | +5.4° |
| 27 October – 5 November | at normal | 64.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Foresthill (14 mi).
0
Alta, Thursday, 8 October
Clear. High 87°, low 63°.
0Alta, Friday, 9 October
Clear. High 89°, low 66°.
0Alta, Saturday, 10 October
Clear. High 72°, low 54°.
0
Alta, Sunday, 11 October
Mostly clear. High 67°, low 53°.
0Alta, Monday, 12 October
Clear. High 65°, low 50°.
0Alta, Tuesday, 13 October
Mostly clear. High 66°, low 46°.
0Alta, Wednesday, 14 October
Clear. High 65°, low 46°.
0
Alta, Thursday, 15 October
Partly cloudy. High 78°, low 43°.
0Alta, Friday, 16 October
Clear. High 75°, low 47°.
0Alta, Saturday, 17 October
Mostly clear. High 78°, low 51°.
0Alta, Sunday, 18 October
Mostly clear. High 77°, low 53°.
0
Alta, Monday, 19 October
Overcast. High 78°, low 57°.
0Alta, Tuesday, 20 October
Clear. High 81°, low 56°.
0Alta, Wednesday, 21 October
Partly cloudy. High 81°, low 58°.
0Alta, Thursday, 22 October
Overcast. High 81°, low 55°.
0.15Alta, Friday, 23 October
Climate normal for this date — 60-year average.
0.22Alta, Saturday, 24 October
Climate normal for this date — 60-year average.
0.17Alta, Sunday, 25 October
Climate normal for this date — 60-year average.
0.19Alta, Monday, 26 October
Climate normal for this date — 60-year average.
0.05Alta, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17Alta, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.11Alta, Thursday, 29 October
Climate normal for this date — 60-year average.
0.18Alta, Friday, 30 October
Climate normal for this date — 60-year average.
0.07Alta, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Alta, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Alta, Monday, 2 November
Climate normal for this date — 60-year average.
0.13Alta, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Alta, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.17Alta, Thursday, 5 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 Alta, 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 Alta, 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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