Pleasanton Weather Forecast

    • 61
    • 74

    Increasing Clouds

    • 56
    • 78

    Mostly Cloudy

    • 43
    • 64

    Mostly Cloudy

    • 48
    • 60

    Mostly Cloudy

    • 57
    • 67

    Mostly Cloudy

    • 58
    • 77

    Partly Sunny

Today 12 Dec Atascosa

Areas of dense fog this morning. Mostly cloudy. Highs in the mid 70s. Southeast Winds around 5 Mph.

Tonight 12 Dec Atascosa

Partly cloudy in the Evening, then becoming cloudy. Not as cool with Lows in the lower 60s. Northeast Winds around 5 Mph.

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Pleasanton Temperature Statistics

December Temperature

Pleasanton Municipal Airport (2.5 miles)

  • Lowest 9 December, 2025

    31.5 °F

  • Average December

    52.4 °F

  • Highest 7 December, 2025

    81.9 °F

Climate (2020–Present)

Pleasanton Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    60.8 °F

  • Average 2020–2025

    72 °F

  • Average High 2020–2025

    84.5 °F
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