7-Day Forecast Summary
7-Day Detailed Weather Forecast for Castro Valley
Today |
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Temperature: 78°F Wind Speed: 5 to 9 mph Wind Direction: W Forecast: Sunny. High near 78, with temperatures falling to around 75 in the afternoon. West wind 5 to 9 mph. |
Tonight |
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Temperature: 59°F Wind Speed: 2 to 8 mph Wind Direction: WSW Forecast: Haze between 11pm and 2am. Mostly cloudy, with a low around 59. West southwest wind 2 to 8 mph. |
Tuesday |
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Temperature: 78°F Wind Speed: 2 to 8 mph Wind Direction: SW Forecast: Partly sunny. High near 78, with temperatures falling to around 76 in the afternoon. Southwest wind 2 to 8 mph. |
Tuesday Night |
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Temperature: 59°F Wind Speed: 2 to 6 mph Wind Direction: SSW Forecast: Mostly cloudy, with a low around 59. South southwest wind 2 to 6 mph. |
Wednesday |
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Temperature: 81°F Wind Speed: 2 to 8 mph Wind Direction: WSW Forecast: Mostly sunny, with a high near 81. West southwest wind 2 to 8 mph. |
Wednesday Night |
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Temperature: 61°F Wind Speed: 2 to 8 mph Wind Direction: WSW Forecast: Partly cloudy, with a low around 61. |
Thursday |
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Temperature: 80°F Wind Speed: 2 to 9 mph Wind Direction: WSW Forecast: Mostly sunny, with a high near 80. |
Thursday Night |
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Temperature: 60°F Wind Speed: 5 to 9 mph Wind Direction: WSW Forecast: Mostly cloudy, with a low around 60. |
Friday |
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Temperature: 75°F Wind Speed: 5 to 9 mph Wind Direction: WSW Forecast: Mostly sunny, with a high near 75. |
Friday Night |
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Temperature: 57°F Wind Speed: 6 to 9 mph Wind Direction: WSW Forecast: Partly cloudy, with a low around 57. |
Saturday |
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Temperature: 73°F Wind Speed: 7 to 10 mph Wind Direction: WSW Forecast: Mostly sunny, with a high near 73. |
Saturday Night |
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Temperature: 57°F Wind Speed: 7 to 10 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 57. |
Sunday |
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Temperature: 72°F Wind Speed: 7 to 10 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 72. |
Sunday Night |
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Temperature: 57°F Wind Speed: 12 mph Wind Direction: WSW Forecast: Partly cloudy, with a low around 57. |

