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Forecast updated 22.1.2026 9:48
Castro Valley, CA, United States
Hourly forecast tables for each day
| Time | Weather | Temperature | Feels like | Wind | Precipitation |
|---|---|---|---|---|---|
| 22:00 |  | 9° | 8° | '%3e%3ccircle%20cx='15'%20cy='15'%20r='15'/%3e%3cpath%20fill='%23303193'%20fill-rule='nonzero'%20d='M14.999%205L20%2012h-4v13h-2V11.999h-4z'/%3e%3c/g%3e%3c/svg%3e) 1 (1) | 0.0 |
| 23:00 |  | 9° | 8° | '%3e%3ccircle%20cx='15'%20cy='15'%20r='15'/%3e%3cpath%20fill='%23303193'%20fill-rule='nonzero'%20d='M15%206c-4.97%200-9%204.03-9%209s4.03%209%209%209%209-4.03%209-9-4.03-9-9-9zm0%202c3.866%200%207%203.134%207%207s-3.134%207-7%207-7-3.134-7-7%203.134-7%207-7z'/%3e%3c/g%3e%3c/svg%3e) 0 (1) | 0.0 |
| Dates | Fri | Sat | Sun | Mon | Tue | Wed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 0 | 3 | 6 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 15 | 3 | 15 | 3 | 15 | 3 | 15 |
| Weather |  | | | '%20fill='%23FFA000'%3e%3crect%20width='45'%20height='16'%20rx='8'/%3e%3crect%20x='169'%20width='45'%20height='16'%20rx='8'/%3e%3c/g%3e%3cg%20transform='rotate(45%20-135.114%20150.713)'%20fill='%23FFA000'%3e%3crect%20width='45'%20height='16'%20rx='8'/%3e%3crect%20x='169'%20width='45'%20height='16'%20rx='8'/%3e%3c/g%3e%3cg%20transform='translate(129%20114)'%20fill='%23FFA000'%3e%3crect%20width='16'%20height='45'%20rx='8'/%3e%3crect%20y='170'%20width='16'%20height='45'%20rx='8'/%3e%3c/g%3e%3cpath%20d='M225.87%20146c-45.752%200-83.754%2035.117-87.558%2080.418l-.385%204.582h-9.924C96.516%20231%2071%20256.517%2071%20288c0%2031.485%2025.518%2057%2057.003%2057H325c38.108%200%2069-30.892%2069-69%200-38.108-30.892-69-69-69-3.636%200-7.234.28-10.775.836l-4.103.643-1.385-3.916C296.425%20169.747%20263.407%20146%20225.871%20146z'%20fill='%23FFF'/%3e%3cpath%20d='M225.87%20156c-40.542%200-74.223%2031.123-77.593%2071.255L147.122%20241h-19.119C102.039%20241%2081%20262.04%2081%20288c0%2025.962%2021.04%2047%2047.003%2047H325c32.585%200%2059-26.415%2059-59s-26.415-59-59-59c-3.117%200-6.198.24-9.226.715l-12.31%201.93-4.155-11.748C288.4%20177.046%20259.137%20156%20225.871%20156zm0-15c40.431%200%2074.827%2025.83%2087.581%2061.896A74.52%2074.52%200%200%201%20325%20202c40.87%200%2074%2033.13%2074%2074s-33.13%2074-74%2074H128.003C93.76%20350%2066%20322.25%2066%20288c0-34.242%2027.751-62%2062.003-62h5.326c3.998-47.608%2043.907-85%2092.542-85z'%20fill='%23303193'%20fill-rule='nonzero'/%3e%3cpath%20d='M321.459%20193.644c-35.1%200-64.256%2027.009-67.174%2061.85l-.295%203.525h-7.614c-24.157%200-43.732%2019.625-43.732%2043.84%200%2024.215%2019.577%2043.839%2043.732%2043.839h151.133c29.236%200%2052.936-23.76%2052.936-53.07%200-29.308-23.7-53.068-52.936-53.068-2.79%200-5.55.216-8.266.643l-3.148.494-1.062-3.011c-9.446-26.778-34.777-45.042-63.574-45.042z'%20fill='%23FFF'/%3e%3cpath%20d='M321.904%20205c-29.377%200-53.76%2022.437-56.196%2051.332l-1.16%2013.74h-17.882c-18.06%200-32.666%2014.546-32.666%2032.464C214%20320.455%20228.609%20335%20246.666%20335h151.445C421.26%20335%20440%20316.338%20440%20293.35c0-22.99-18.74-41.651-41.889-41.651-2.22%200-4.412.17-6.565.506l-12.287%201.917-4.161-11.718C367.205%20220.178%20346.012%20205%20321.904%20205zm0-15c31.081%200%2057.524%2019.774%2067.329%2047.384a57.552%2057.552%200%200%201%208.878-.685c31.419%200%2056.889%2025.363%2056.889%2056.65C455%20324.637%20429.53%20350%20398.111%20350H246.666C220.341%20350%20199%20328.755%20199%20302.536c0-26.214%2021.334-47.464%2047.666-47.464h4.095C253.834%20218.626%20284.514%20190%20321.904%20190z'%20fill='%23303193'%20fill-rule='nonzero'/%3e%3c/g%3e%3c/svg%3e "mostly cloudy, light") |  |  | | | | '%20fill='none'%20fill-rule='evenodd'%3e%3cellipse%20fill='%234CD7FF'%20cx='113.87'%20cy='114.453'%20rx='100.69'%20ry='100.661'/%3e%3cpath%20d='M113.87%20215.114c55.61%200%20100.69-45.068%20100.69-100.661%200-55.594-45.08-100.662-100.69-100.662S13.18%2058.86%2013.18%20114.453s45.08%20100.66%20100.69%20100.66zm0%2013C51.082%20228.114.18%20177.227.18%20114.453.18%2051.678%2051.082.79%20113.87.79s113.69%2050.887%20113.69%20113.662c0%2062.774-50.902%20113.66-113.69%20113.66z'%20fill='%2302A9F1'%20fill-rule='nonzero'/%3e%3cpath%20d='M29.251%20169.032c15.733%2010.175%2034.486%2016.082%2054.619%2016.082%2055.61%200%20100.69-45.068%20100.69-100.661%200-20.117-5.903-38.856-16.072-54.58%2027.724%2017.93%2046.072%2049.113%2046.072%2084.58%200%2055.593-45.08%20100.66-100.69%20100.66-35.487%200-66.686-18.352-84.619-46.081z'%20fill='%2302A9F1'%20opacity='.7'/%3e%3c/g%3e%3c/svg%3e "clear, dark") | | | | |  | | | '%20fill='%23FFA000'%3e%3crect%20width='45'%20height='16'%20rx='8'/%3e%3crect%20x='169'%20width='45'%20height='16'%20rx='8'/%3e%3c/g%3e%3cg%20transform='rotate(-45%20345.229%2071.322)'%20fill='%23FFA000'%3e%3crect%20width='45'%20height='16'%20rx='8'/%3e%3crect%20x='169'%20width='45'%20height='16'%20rx='8'/%3e%3c/g%3e%3cg%20transform='rotate(45%20-106.229%20131.678)'%20fill='%23FFA000'%3e%3crect%20width='45'%20height='16'%20rx='8'/%3e%3crect%20x='169'%20width='45'%20height='16'%20rx='8'/%3e%3c/g%3e%3cg%20transform='translate(124%2088)'%20fill='%23FFA000'%3e%3crect%20width='16'%20height='45'%20rx='8'/%3e%3crect%20y='170'%20width='16'%20height='45'%20rx='8'/%3e%3c/g%3e%3cpath%20d='M249.87%20146c-45.752%200-83.754%2035.117-87.558%2080.418l-.385%204.582h-9.924C120.516%20231%2095%20256.517%2095%20288c0%2031.485%2025.518%2057%2057.003%2057H349c38.108%200%2069-30.892%2069-69%200-38.108-30.892-69-69-69-3.636%200-7.234.28-10.775.836l-4.103.643-1.385-3.916C320.425%20169.747%20287.407%20146%20249.871%20146z'%20fill='%23FFF'/%3e%3cpath%20d='M249.87%20156c-40.542%200-74.223%2031.123-77.593%2071.255L171.122%20241h-19.119C126.039%20241%20105%20262.04%20105%20288c0%2025.962%2021.04%2047%2047.003%2047H349c32.585%200%2059-26.415%2059-59s-26.415-59-59-59c-3.117%200-6.198.24-9.226.715l-12.31%201.93-4.155-11.748C312.4%20177.046%20283.137%20156%20249.871%20156zm0-15c40.431%200%2074.827%2025.83%2087.581%2061.896A74.52%2074.52%200%200%201%20349%20202c40.87%200%2074%2033.13%2074%2074s-33.13%2074-74%2074H152.003C117.76%20350%2090%20322.25%2090%20288c0-34.242%2027.751-62%2062.003-62h5.326c3.998-47.608%2043.907-85%2092.542-85z'%20fill='%23303193'%20fill-rule='nonzero'/%3e%3cpath%20d='M346.52%20389.225a9.33%209.33%200%200%200-17.534-6.381l-11.913%2032.729a9.33%209.33%200%200%200%2017.534%206.381l11.912-32.729zm-24.251%2066.627a9.33%209.33%200%200%200-17.533-6.382l-4.255%2011.69a9.33%209.33%200%201%200%2017.534%206.38l4.254-11.688zM265.77%20467.54a9.33%209.33%200%201%201-17.533-6.38l11.913-32.73a9.33%209.33%200%200%201%2017.533%206.382l-11.912%2032.729zm24.25-66.626a9.33%209.33%200%200%201-17.533-6.381l4.255-11.69a9.33%209.33%200%201%201%2017.533%206.382l-4.254%2011.69zm-47.989-11.689a9.33%209.33%200%200%200-17.533-6.381l-11.912%2032.729a9.33%209.33%200%200%200%2017.533%206.381l11.912-32.729zm-24.25%2066.627a9.33%209.33%200%200%200-17.533-6.382l-4.254%2011.69a9.33%209.33%200%201%200%2017.533%206.38l4.254-11.688zm-56.498%2011.688a9.33%209.33%200%200%201-17.533-6.38l11.912-32.73a9.33%209.33%200%200%201%2017.533%206.382l-11.912%2032.729zm24.25-66.626A9.33%209.33%200%200%201%20168%20394.533l4.254-11.69a9.33%209.33%200%201%201%2017.533%206.382l-4.254%2011.69z'%20fill='%230A95D7'%20fill-rule='nonzero'/%3e%3c/g%3e%3c/svg%3e "isolated showers, light") |
| Temperature | 9° | 9° | 8° | 9° | 13° | 8° | 6° | 8° | 16° | 6° | 2° | 14° | 5° | 15° | 6° | 16° | 11° | 15° |
| Feels like temperature | 8° | 7° | 7° | 9° | 12° | 6° | 5° | 8° | 15° | 4° | -1° | 14° | 3° | 17° | 3° | 17° | 8° | 15° |
| Wind (gusts) m/s | ||||||||||||||||||
| Wind direction | | '%3e%3ccircle%20cx='15'%20cy='15'%20r='15'/%3e%3cpath%20fill='%23303193'%20fill-rule='nonzero'%20d='M14.999%205L20%2012h-4v13h-2V11.999h-4z'/%3e%3c/g%3e%3c/svg%3e) | | | '%3e%3ccircle%20cx='15'%20cy='15'%20r='15'/%3e%3cpath%20fill='%23303193'%20fill-rule='nonzero'%20d='M14.999%205L20%2012h-4v13h-2V11.999h-4z'/%3e%3c/g%3e%3c/svg%3e) | '%3e%3ccircle%20cx='15'%20cy='15'%20r='15'/%3e%3cpath%20fill='%23303193'%20fill-rule='nonzero'%20d='M14.999%205L20%2012h-4v13h-2V11.999h-4z'/%3e%3c/g%3e%3c/svg%3e) | | | | | | '%3e%3ccircle%20cx='15'%20cy='15'%20r='15'/%3e%3cpath%20fill='%23303193'%20fill-rule='nonzero'%20d='M14.999%205L20%2012h-4v13h-2V11.999h-4z'/%3e%3c/g%3e%3c/svg%3e) | | | |  | |  |
| Wind speed | 0 | 1 | 1 | 0 | 2 | 1 | 1 | 1 | 4 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 3 | 2 |
| Wind gust | (1) | (2) | (3) | (2) | (6) | (2) | (3) | (3) | (8) | (3) | (4) | (3) | (5) | (5) | (5) | (4) | (6) | (6) |
| Precipitation amount mm | ||||||||||||||||||
| Probability of precipitation | 0.0 (3h) | 0.0 (3h) | 0.0 (3h) | 0.0 (3h) | 0.0 (6h) | 0.0 (6h) | 0.0 (6h) | 0.0 (6h) | 0.0 (6h) | 0.0 (6h) | 0.0 (6h) | 0.0 (12h) | 0.0 (12h) | 0.0 (12h) | 0.0 (12h) | 0.0 (12h) | 0.3 (12h) | 4.1 (12h) |
All times on page are in time zone America/Los Angeles.
