Grover Beach Weather Forecast

    • 52
    • 80

    Increasing Clouds

    • 52
    • 70

    Partly Sunny

    • 52
    • 78

    Mostly Sunny

    • 55
    • 83

    Sunny

    • 55
    • 84

    Sunny

    • 52
    • 81

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

Today 20 Mar San Luis Obispo County Beaches

Sunny. Highs in the upper 70s to mid 80s.

Tonight 20 Mar San Luis Obispo County Beaches

Mostly clear in the evening then Areas of low Clouds and fog. Fog locally dense with visibility one quarter mile or less. Lows in the 50s to lower 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grover Beach Temperature Statistics

March Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (7.5 miles)

  • Lowest 7 March, 2026

    42.1 °F

  • Average March

    62.7 °F

  • Highest 18 March, 2026

    90 °F

Climate (2021–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (7.5 miles)

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  • Average Low 2021–2026

    50.1 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    73 °F
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