Don Castro Reservoir Weather Forecast

    • 43
    • 56

    Mostly Cloudy

    • 51
    • 55

    Rain

    • 53
    • 59

    Rain

    • 52
    • 61

    Rain Likely

    • 47
    • 58

    Rain

    • 40
    • 55

    Rain Likely

    • 40
    • 54

    Chance Rain

Today 30 Jan San Francisco Bay Shoreline

Mostly cloudy late in the morning then becoming partly cloudy. Highs in the upper 50s. Light Winds. Becoming west around 5 Mph in the afternoon.

Tonight 30 Jan San Francisco Bay Shoreline

Mostly cloudy. A slight chance of rain. Lows in the mid 40s. West Winds around 5 Mph. Becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Don Castro Reservoir Temperature Statistics

January Temperature

Hayward, Hayward Air Terminal (3.7 miles)

  • Lowest 27 January, 2025

    37.9 °F

  • Average January

    53.1 °F

  • Highest 11 January, 2025

    71.7 °F

Climate (2020–Present)

Hayward, Hayward Air Terminal (3.7 miles)

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  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    59.3 °F

  • Average High 2020–2025

    69.1 °F
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