Blackrock Mountain Weather Forecast

    • 29
    • 51

    Mostly Sunny

    • 28
    • 49

    Partly Sunny

    • 27
    • 49

    Sunny

    • 29
    • 50

    Sunny

    • 28
    • 51

    Mostly Sunny

    • 28
    • 49

    Mostly Sunny

Today 31 Jan South End of the Upper Sierra

Sunny. Highs 52 to 64. Northeast Winds up to 10 Mph shifting to the south in the afternoon.

Tonight 31 Jan South End of the Upper Sierra

Clear. Lows 32 to 46. Northeast Winds up to 10 Mph.

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Blackrock Mountain Temperature Statistics

January Temperature

Porterville, Porterville Municipal Airport (44.7 miles)

  • Lowest 10 January, 2026

    30.9 °F

  • Average January

    48.1 °F

  • Highest 2 January, 2026

    66.9 °F

Climate (2021–Present)

Porterville, Porterville Municipal Airport (44.7 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    64.9 °F

  • Average High 2021–2026

    79 °F
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