Lake Success Weather Forecast

    • 66
    • 85

    Chance Thunderstorms

    • 66
    • 86

    Chance Rain Showers

    • 65
    • 88

    Mostly Sunny

    • 67
    • 89

    Mostly Sunny

    • 70
    • 92

    Partly Sunny

    • 64
    • 90

    Chance Rain

Today 18 Sep Fresno-Tulare Foothills

Not as warm. Cloudy. Chance of rain in the Morning, then chance of Showers and slight chance of Thunderstorms in the afternoon. Highs in the lower 80s. Southeast Winds up to 10 Mph shifting to the southwest in the afternoon. Chance of precipitation 50 percent.

Tonight 18 Sep Fresno-Tulare Foothills

Mostly cloudy with a 50 percent chance of Thunderstorms. Lows in the mid 60s. North Winds up to 5 Mph shifting to the east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Success Temperature Statistics

September Temperature

Porterville, Porterville Municipal Airport (9.3 miles)

  • Lowest 9 September, 2025

    57.9 °F

  • Average September

    77.4 °F

  • Highest 1 September, 2025

    102.9 °F

Climate (2020–Present)

Porterville, Porterville Municipal Airport (9.3 miles)

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  • Average Low 2020–2025

    51.4 °F

  • Average 2020–2025

    64.9 °F

  • Average High 2020–2025

    79.3 °F
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