Castro Valley Weather Forecast

    • 45
    • 69

    Increasing Clouds

    • 44
    • 67

    Partly Sunny

    • 44
    • 65

    Mostly Sunny

    • 46
    • 67

    Chance Rain

    • 44
    • 59

    Chance Rain

    • 43
    • 60

    Partly Sunny

Today 2 Mar San Francisco Bay Shoreline

Partly cloudy. Highs in the upper 60s. Light Winds. Becoming northwest 5 to 15 Mph in the afternoon.

Tonight 2 Mar San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s. Northwest Winds 5 to 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castro Valley Temperature Statistics

March Temperature

Hayward, Hayward Air Terminal (3.1 miles)

  • Lowest

  • Average March

  • Highest

Climate (2010–Present)

Hayward, Hayward Air Terminal (3.1 miles)

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  • Average Low 2010–Present

    52 °F
  • Average 2010–Present

    59.1 °F
  • Average High 2010–Present

    68.5 °F
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