Cottonwood Bay Weather Forecast

    • 43
    • 59

    Mostly Sunny

    • 45
    • 60

    Mostly Cloudy

    • 46
    • 62

    Partly Sunny

    • 45
    • 61

    Mostly Cloudy

    • 43
    • 61

    Mostly Sunny

    • 44
    • 61

    Sunny

    • 45
    • 62

    Mostly Sunny

Today 29 Jan West Side Mountains north of 198

Sunny. Highs around 60. East Winds up to 10 Mph.

Tonight 29 Jan West Side Mountains north of 198

Mostly clear. Lows in the mid 40s. West Winds up to 5 Mph shifting to the southwest after midnight.

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Cottonwood Bay Temperature Statistics

January Temperature

Hollister, CA (21.1 miles)

  • Lowest 10 January, 2026

    28.4 °F

  • Average January

    50.3 °F

  • Highest 15 January, 2026

    71.6 °F

Climate (2021–Present)

Hollister, CA (21.1 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    72.4 °F
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