Don Castro Reservoir Weather Forecast

    • 53
    • 86

    Mostly Sunny

    • 54
    • 70

    Chance Rain

    • 50
    • 64

    Chance Rain

    • 44
    • 61

    Slight Chance Rain

    • 46
    • 62

    Rain Likely

    • 49
    • 60

    Rain Likely

    • 47
    • 63

    Chance Rain

Today 25 Mar San Francisco Bay Shoreline

Partly cloudy. Highs in the 80s. Light Winds. Becoming northwest around 5 Mph in the afternoon.

Tonight 25 Mar San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. Northwest Winds 5 to 10 Mph becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Don Castro Reservoir Temperature Statistics

March Temperature

Hayward, Hayward Air Terminal (3.7 miles)

  • Lowest 18 March, 2025

    42.7 °F

  • Average March

    55.1 °F

  • Highest 23 March, 2025

    72 °F

Climate (2020–Present)

Hayward, Hayward Air Terminal (3.7 miles)

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  • Average Low 2020–2025

    52.1 °F

  • Average 2020–2025

    59.4 °F

  • Average High 2020–2025

    69.1 °F
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