Weather in Hayward, CA
Hayward, Wednesday, 21 October, 04:50
Overcast. Feels like 58°. High 68°, low 58°.
Monthly outlook for Hayward, CA: average high 67°, average low 55.3°. That is 1.2° below the climate normal for October. Precipitation is expected on 4 days (about 2.2 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 27 October (73.5°), the coolest 24 October (48.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 68.5° | 69.9° | -0.8° |
| 31 October – 9 November | 64.6° | 66.9° | -1.3° |
| 10 November – 19 November | at normal | 63.1° | — |
October records over 66 years
0.52
Hayward, Thursday, 22 October
Heavy rain. High 68°, low 54°.
0Hayward, Friday, 23 October
Overcast. High 68°, low 57°.
0
Hayward, Saturday, 24 October
Clear. High 66°, low 48°.
0Hayward, Sunday, 25 October
Overcast. High 66°, low 52°.
0Hayward, Monday, 26 October
Clear. High 65°, low 54°.
0
Hayward, Tuesday, 27 October
Mostly clear. High 74°, low 57°.
0Hayward, Wednesday, 28 October
Overcast. High 73°, low 56°.
0Hayward, Thursday, 29 October
Overcast. High 71°, low 61°.
0.25Hayward, Friday, 30 October
Rain. High 66°, low 62°.
0.16Hayward, Saturday, 31 October
Light rain. High 69°, low 59°.
1.28Hayward, Sunday, 1 November
Rain. High 61°, low 56°.
0.01Hayward, Monday, 2 November
Light rain. High 61°, low 56°.
0Hayward, Tuesday, 3 November
Mostly clear. High 65°, low 55°.
0Hayward, Wednesday, 4 November
Clear. High 65°, low 51°.
0Hayward, Thursday, 5 November
Overcast. High 66°, low 51°.
0.04Hayward, Friday, 6 November
Climate normal for this date — 60-year average.
0.06
Hayward, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Hayward, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Hayward, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Hayward, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Hayward, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Hayward, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13Hayward, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Hayward, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Hayward, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Hayward, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Hayward, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Hayward, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Hayward, 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 Hayward, 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 Hayward, 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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