Atascadero Weather Forecast

    • 64
    • 95

    Mostly Cloudy

    • 63
    • 103

    Hot

    • 61
    • 100

    Hot

    • 56
    • 91

    Mostly Sunny

    • 53
    • 85

    Mostly Sunny

    • 54
    • 85

    Mostly Sunny

Today 8 Sep Southern Salinas Valley

Partly cloudy in the Morning, becoming mostly cloudy with a 20 percent chance of Showers in the afternoon. Highs 92 to 100.

Tonight 8 Sep Southern Salinas Valley

Mostly cloudy. Lows in the lower to mid 60s.

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Atascadero Temperature Statistics

September Temperature

Paso Robles Municipal Airport (12.4 miles)

  • Lowest 2 September, 2026

    46.7 °F

  • Average September

    67.1 °F

  • Highest 3 September, 2026

    85.6 °F

Climate (2021–2026)

Paso Robles Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    77.9 °F
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