Blackrock Mountain Weather Forecast

    • 22
    • 49

    Mostly Sunny

    • 26
    • 47

    Mostly Sunny

    • 29
    • 51

    Partly Sunny

    • 29
    • 53

    Partly Sunny

    • 28
    • 52

    Breezy

    • 24
    • 49

    Chance Snow

    • 23
    • 44

    Partly Sunny

Today 16 Apr South End of the Upper Sierra

Breezy, sunny. Highs 49 to 61. Northwest Winds 5 to 15 Mph with Gusts to around 35 Mph shifting to the west 10 to 25 Mph with Gusts to around 55 Mph in the afternoon.

Tonight 16 Apr South End of the Upper Sierra

Colder. Mostly clear. Lows 25 to 37. Northwest Winds 5 to 15 Mph. Gusts up to 60 Mph decreasing to 45 Mph after midnight.

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Blackrock Mountain Temperature Statistics

April Temperature

Porterville, Porterville Municipal Airport (44.7 miles)

  • Lowest 3 April, 2026

    41 °F

  • Average April

    63.9 °F

  • Highest 5 April, 2026

    89.1 °F

Climate (2021–Present)

Porterville, Porterville Municipal Airport (44.7 miles)

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  • Average Low 2021–2026

    51.9 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    79.2 °F
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