White River Weather Forecast

    • 66
    • 87

    Increasing Clouds

    • 66
    • 88

    Increasing Clouds

    • 62
    • 84

    Slight Chance Rain

    • 65
    • 86

    Sunny

    • 69
    • 92

    Sunny

    • 70
    • 94

    Mostly Sunny

    • 67
    • 93

    Mostly Sunny

Today 19 Sep South End Sierra Foothills

Sunny. Highs in the upper 80s.

Tonight 19 Sep South End Sierra Foothills

Mostly clear until early morning then becoming mostly cloudy. Lows in the mid 60s. East Winds up to 10 Mph.

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White River Temperature Statistics

September Temperature

Porterville, Porterville Municipal Airport (19.3 miles)

  • Lowest 2 September, 2026

    53.1 °F

  • Average September

    75.1 °F

  • Highest 10 September, 2026

    105.1 °F

Climate (2021–2026)

Porterville, Porterville Municipal Airport (19.3 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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