Weather in Discovery Bay, CA
Discovery Bay, Friday, 30 October, 03:50
Overcast. Feels like 54°. High 69°, low 50°.
Monthly outlook for Discovery Bay, CA: average high 65°, average low 48.7°. That is 1.2° below the climate normal for October. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 8 November (74.7°), the coolest 14 November (39.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 68.3° | 68.6° | -0.2° |
| 9 November – 18 November | 59.6° | 64.3° | -2.6° |
| 19 November – 28 November | at normal | 60.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mountain House (10 mi).
0Discovery Bay, Saturday, 31 October
Overcast. High 66°, low 45°.
0.11
Discovery Bay, Sunday, 1 November
Rain. High 64°, low 50°.
0Discovery Bay, Monday, 2 November
Overcast. High 64°, low 50°.
0
Discovery Bay, Tuesday, 3 November
Mostly clear. High 67°, low 49°.
0Discovery Bay, Wednesday, 4 November
Overcast. High 67°, low 50°.
0Discovery Bay, Thursday, 5 November
Overcast. High 67°, low 52°.
0
Discovery Bay, Friday, 6 November
Clear. High 72°, low 50°.
0Discovery Bay, Saturday, 7 November
Clear. High 71°, low 50°.
0Discovery Bay, Sunday, 8 November
Overcast. High 75°, low 53°.
0.17Discovery Bay, Monday, 9 November
Light rain. High 67°, low 56°.
0.09Discovery Bay, Tuesday, 10 November
Light rain. High 60°, low 50°.
0.22Discovery Bay, Wednesday, 11 November
Rain. High 59°, low 48°.
0Discovery Bay, Thursday, 12 November
Overcast. High 56°, low 44°.
0Discovery Bay, Friday, 13 November
Clear. High 59°, low 42°.
0Discovery Bay, Saturday, 14 November
Clear. High 57°, low 40°.
0.05
Discovery Bay, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Discovery Bay, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Discovery Bay, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Discovery Bay, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Discovery Bay, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Discovery Bay, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Discovery Bay, Saturday, 21 November
Climate normal for this date — 60-year average.
0.07Discovery Bay, Sunday, 22 November
Climate normal for this date — 60-year average.
0.04Discovery Bay, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Discovery Bay, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.04Discovery Bay, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.06Discovery Bay, Thursday, 26 November
Climate normal for this date — 60-year average.
0.06Discovery Bay, Friday, 27 November
Climate normal for this date — 60-year average.
0.1Discovery Bay, Saturday, 28 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 Discovery Bay, 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 Discovery Bay, 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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