Cottonwood Bay Weather Forecast

    • 62
    • 91

    Becoming Sunny

    • 61
    • 95

    Sunny

    • 58
    • 91

    Sunny

    • 55
    • 87

    Mostly Sunny

    • 55
    • 86

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

Today 20 May West Side Mountains north of 198

Mostly sunny. Highs 83 to 91. Northeast Winds up to 10 Mph.

Tonight 20 May West Side Mountains north of 198

Mostly clear. Lows 61 to 67. West Winds up to 15 Mph.

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Cottonwood Bay Temperature Statistics

May Temperature

Hollister, CA (21.1 miles)

  • Lowest 14 May, 2026

    42.8 °F

  • Average May

    60.4 °F

  • Highest 18 May, 2026

    84.2 °F

Climate (2021–Present)

Hollister, CA (21.1 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    72.7 °F
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