Lake Joallan Weather Forecast

    • 58
    • 89

    Sunny

    • 58
    • 88

    Sunny

    • 61
    • 92

    Sunny

    • 64
    • 97

    Hot

    • 63
    • 96

    Mostly Sunny

    • 63
    • 95

    Mostly Sunny

Today 13 Sep Merced - Madera - Mendota

Sunny. Highs in the upper 80s. Northwest Winds up to 10 Mph.

Tonight 13 Sep Merced - Madera - Mendota

Mostly clear. Lows in the upper 50s. Northwest Winds up to 10 Mph.

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  • Temperature Real-Time

Lake Joallan Temperature Statistics

September Temperature

Madera Municipal Airport (20.5 miles)

  • Lowest 7 September, 2025

    57 °F

  • Average September

    76.4 °F

  • Highest 1 September, 2025

    104 °F

Climate (2020–Present)

Madera Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    49.7 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    78.8 °F
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