San Luis Reservoir State Recreation Area Weather Forecast

    • 78
    • 85

    Partly Sunny

    • 79
    • 90

    Mostly Sunny

    • 72
    • 89

    Mostly Sunny

    • 66
    • 84

    Breezy

    • 63
    • 80

    Breezy

    • 64
    • 79

    Mostly Sunny

    • 64
    • 80

    Mostly Sunny

Today 8 Sep West Side Mountains north of 198

Sunny. Highs 87 to 97. Northeast Winds up to 10 Mph.

Tonight 8 Sep West Side Mountains north of 198

Partly cloudy then becoming mostly cloudy after midnight then becoming partly cloudy. Lows 73 to 79. West Winds up to 10 Mph.

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San Luis Reservoir State Recreation Area Temperature Statistics

September Temperature

Hollister, CA (21.1 miles)

  • Lowest 2 September, 2026

    50 °F

  • Average September

    65.8 °F

  • Highest 5 September, 2026

    84.2 °F

Climate (2021–2026)

Hollister, CA (21.1 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    72.8 °F
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