Lake San Antonio Weather Forecast

    • 62
    • 105

    Hot

    • 61
    • 102

    Hot

    • 59
    • 101

    Hot

    • 57
    • 100

    Hot

    • 54
    • 96

    Mostly Sunny

    • 53
    • 94

    Mostly Sunny

    • 54
    • 95

    Sunny

Today 22 Aug Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Sunny. Highs 95 to 106. Northwest Winds 10 to 20 Mph.

Tonight 22 Aug Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Mostly clear. Lows in the lower 60s. Northwest Winds 10 to 20 Mph decreasing to around 5 Mph after midnight.

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Lake San Antonio Temperature Statistics

August Temperature

Paso Robles Municipal Airport (22.4 miles)

  • Lowest 4 August, 2025

    49.6 °F

  • Average August

    75.2 °F

  • Highest 11 August, 2025

    104.6 °F

Climate (2020–Present)

Paso Robles Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    78 °F
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