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3 days ago · Clear 38°F 3°C ... More Information: Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast Extended Forecast for 2 Miles SW Castro Valley CA Today …

Castro Valley Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Castro Valley area.

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Dec 29, 2025 · A powerful winter storm swept across the central and eastern United States, knocking out power and snarling travel during one of the busiest stretches of the holiday season.

Aug 16, 2025 · Weather today carries more than just sunshine there’s also the promise of rain. Thunderstorms are likely to show up in certain areas, especially toward evening.

The Weather Channel and weather.com provide a national and local weather forecast for cities, as well as weather radar, report and hurricane coverage

Dec 30, 2025 · Use CNN’s winter weather alert tracker below to see advisories, watches and warnings across the country.