Grover Beach Weather Forecast

    • 51
    • 59

    Rain

    • 50
    • 58

    Rain Likely

    • 46
    • 62

    Slight Chance Rain

    • 46
    • 61

    Mostly Sunny

    • 45
    • 60

    Mostly Sunny

    • 46
    • 64

    Mostly Sunny

    • 47
    • 66

    Mostly Sunny

Today 4 Jan San Luis Obispo County Beaches

A chance of rain with a slight chance of Thunderstorms in the Morning, then rain with a slight chance of Thunderstorms in the afternoon. Highs in the mid 50s to around 60. South Winds 15 to 25 Mph.

Tonight 4 Jan San Luis Obispo County Beaches

Rain likely with a slight chance of Thunderstorms in the Evening, then a slight chance of rain after midnight. Lows in the lower to mid 50s. Southwest Winds around 15 Mph in the evening. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grover Beach Temperature Statistics

January Temperature

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

  • Lowest 2 January, 2026

    42.1 °F

  • Average January

    56.5 °F

  • Highest 2 January, 2026

    66 °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 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    72.8 °F
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