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Weather in Castro Valley, CA
51°
Castro Valley, Monday, 12 October, 02:30
Clear. Feels like 49°. High 69°, low 48°.
Pressure29.80 inHg
Wind5.7 mph E 
Humidity77%
Visibility6.2 mi
Dew point44°
Mon, 12October
69°/48°
69°/48°Tue, 13October73°/47°
73°/47°Wed, 14October77°/52°
77°/52°Thu, 15October86°/55°
86°/55°Fri, 16October85°/57°
85°/57°Sat, 17October78°/56°
78°/56°Sun, 18October72°/55°
72°/55° | 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 66° | 51° | 50° | 49° | 50° | 60° | 66° | 69° | 68° | 62° | 56° | 53° |
| Feels like | 66° | 51° | 49° | 49° | 49° | 59° | 65° | 67° | 66° | 60° | 55° | 53° |
Pressure, inHg  | 29.91 | 29.91 | 29.80 | 29.83 | 29.88 | 29.91 | 29.91 | 29.88 | 29.88 | 29.91 | 29.94 | 29.97 |
| Wind, mph | 3.8 | 3.8 | 0.8 | 0.8 | 0.6 | 0.7 | 1.8 | 3.6 | 3.8 | 3 | 1.6 | 1.3 |
Humidity, %  | 44% | 44% | 79% | 82% | 83% | 57% | 44% | 37% | 42% | 56% | 73% | 93% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | — | — | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  | | | | | | | | | | | |
| Temperature | 51° | 49° | 48° | 47° | 50° | 60° | 68° | 72° | 72° | 67° | 63° | 60° |
| Feels like | 51° | 49° | 48° | 47° | 50° | 58° | 66° | 70° | 70° | 66° | 61° | 58° |
| Pressure, inHg | 29.97 | 29.97 | 30.00 | 30.00 | 30.06 | 30.09 | 30.06 | 30.03 | 30.00 | 30.03 | 30.06 | 30.09 |
| Wind, mph | 0.5 | 0.2 | 0.7 | 1.1 | 0.7 | 1.3 | 1.6 | 2.4 | 2.9 | 2.6 | 1.9 | 0.5 |
| Humidity, % | 99% | 100% | 100% | 99% | 100% | 43% | 28% | 18% | 19% | 43% | 43% | 49% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 5.3 mi | 0.6 mi | 0.1 mi | 0.1 mi | 2.4 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 56° | 55° | 54° | 53° | 54° | 65° | 73° | 77° | 76° | 69° | 62° | 59° |
| Feels like | 55° | 54° | 53° | 52° | 52° | 64° | 71° | 76° | 75° | 68° | 61° | 58° |
| Pressure, inHg | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.12 | 30.09 | 30.06 | 30.03 | 30.06 | 30.06 | 30.09 |
| Wind, mph | 1 | 0.7 | 0.5 | 0.4 | 0.5 | 0.6 | 1.2 | 2.2 | 2.7 | 1.7 | 0.9 | 0.5 |
| Humidity, % | 68% | 75% | 76% | 75% | 69% | 40% | 30% | 27% | 36% | 43% | 62% | 76% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 57° | 56° | 55° | 55° | 56° | 72° | 80° | 86° | 83° | 78° | 69° | 66° |
| Feels like | 56° | 55° | 55° | 53° | 54° | 70° | 79° | 83° | 81° | 77° | 68° | 65° |
| Pressure, inHg | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.06 | 30.03 | 30.00 | 30.00 | 30.00 | 30.03 |
| Wind, mph | 0.2 | 0.1 | 0.2 | 0.4 | 0.8 | 0.8 | 1.4 | 1.5 | 0.8 | 0.7 | 0.1 | 0.5 |
| Humidity, % | 82% | 86% | 85% | 78% | 61% | 30% | 21% | 16% | 20% | 31% | 49% | 58% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 64° | 62° | 59° | 59° | 65° | 71° | 77° | 80° | 79° | 78° | 75° | 68° |
| Feels like | 63° | 61° | 58° | 57° | 63° | 69° | 76° | 78° | 78° | 77° | 74° | 68° |
| Pressure, inHg | 30.03 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 |
| Wind, mph | 0.5 | 0.3 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 |
| Humidity, % | 62% | 62% | 18% | 18% | 18% | 18% | 18% | 18% | 18% | 18% | 18% | 18% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | — | — | — | — | — | — | — | — | — | — |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 70° | 57° | 57° | 56° | 60° | 64° | 68° | 70° | 71° | 71° | 69° | 65° |
| Feels like | 70° | 56° | 56° | 56° | 60° | 63° | 67° | 69° | 70° | 70° | 68° | 64° |
| Pressure, inHg | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 | 29.97 |
| Wind, mph | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 |
| Humidity, % | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | — | — | — | — | — | — | — | — | — | — | — | — |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 69° | 55° | 56° | 56° | 60° | 64° | 67° | 68° | 66° | 64° | 62° | 59° |
| Feels like | 69° | 55° | 55° | 56° | 59° | 63° | 67° | 67° | 65° | 63° | 61° | 58° |
| Pressure, inHg | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 |
| Wind, mph | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 |
| Humidity, % | 57% | 57% | 57% | 57% | 57% | 57% | 57% | 57% | 57% | 57% | 57% | 57% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | — | — | — | — | — | — | — | — | — | — | — | — |
Sun and moon today
Day length — 11 h 22 min
Sunrise — 07:13
Sunset — 18:35
Sunrise and sunset in local time
New moon, 1%
Sunrise — —
Sunset — —
Weather history
Temperature extremes over 66 years
October 12 temperatures in Castro Valley, CA over 66 years
high: 90.5° (1978)low: 47.1° (1981)
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