Sheffield Weather Forecast

    • 56
    • 73

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 58
    • 78

    Partly Sunny

    • 58
    • 78

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 58
    • 77

    Partly Sunny

Today 13 Sep San Francisco Bay Shoreline

Sunny, breezy. Highs in the upper 60s to mid 70s. West Winds 10 to 20 Mph increasing to 20 to 30 Mph in the afternoon.

Tonight 13 Sep San Francisco Bay Shoreline

Mostly clear. Breezy. Lows in the mid 50s. West Winds 20 to 30 Mph. Becoming southeast 5 to 10 Mph after midnight.

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Sheffield Temperature Statistics

September Temperature

Hayward, Hayward Air Terminal (5 miles)

  • Lowest 7 September, 2026

    55.7 °F

  • Average September

    69.9 °F

  • Highest 9 September, 2026

    97 °F

Climate (2021–2026)

Hayward, Hayward Air Terminal (5 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    59.8 °F

  • Average High 2021–2026

    69.2 °F
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