Slate Mountain Weather Forecast

    • 38
    • 50

    Sunny

    • 34
    • 51

    Mostly Sunny

    • 37
    • 46

    Partly Sunny

    • 40
    • 52

    Sunny

    • 42
    • 58

    Sunny

    • 42
    • 59

    Sunny

    • 43
    • 58

    Mostly Sunny

Today 8 Mar South End of the Upper Sierra

Not as cool. Sunny. Highs 49 to 63. Northeast Winds 5 to 15 Mph with Gusts to around 45 Mph shifting to the southeast with Gusts to around 35 Mph in the afternoon.

Tonight 8 Mar South End of the Upper Sierra

Clear. Lows 31 to 45. Northeast Winds up to 10 Mph.

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Slate Mountain Temperature Statistics

March Temperature

Porterville, Porterville Municipal Airport (27.3 miles)

  • Lowest 5 March, 2026

    39.9 °F

  • Average March

    56.9 °F

  • Highest 1 March, 2026

    77 °F

Climate (2021–Present)

Porterville, Porterville Municipal Airport (27.3 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    65 °F

  • Average High 2021–2026

    79 °F
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