Slate Mountain Weather Forecast

    • 27
    • 36

    Becoming Sunny

    • 35
    • 43

    Increasing Clouds

    • 33
    • 45

    Partly Sunny

    • 29
    • 38

    Snow Likely

    • 27
    • 35

    Slight Chance Snow

    • 31
    • 40

    Partly Sunny

    • 34
    • 43

    Slight Chance Snow

Today 22 Apr South End of the Upper Sierra

Sunny. Highs 41 to 55. West Winds 5 to 20 Mph. Gusts up to 40 Mph increasing to 50 Mph in the afternoon.

Tonight 22 Apr South End of the Upper Sierra

Mostly clear. Lows 24 to 36. Northwest Winds 10 to 15 Mph with Gusts to around 55 Mph decreasing to up to 10 Mph with Gusts to around 45 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Slate Mountain Temperature Statistics

April Temperature

Porterville, Porterville Municipal Airport (27.3 miles)

  • Lowest 3 April, 2026

    41 °F

  • Average April

    63.6 °F

  • Highest 5 April, 2026

    89.1 °F

Climate (2021–Present)

Porterville, Porterville Municipal Airport (27.3 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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