San Rafael Airport Weather Forecast

    • 56
    • 76

    Partly Sunny

    • 56
    • 74

    Partly Sunny

    • 57
    • 75

    Chance Rain

    • 56
    • 76

    Slight Chance Rain

    • 54
    • 78

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

Today 31 Aug North Bay Interior Valleys

Partly cloudy. Highs in the mid 60s to upper 70s. Southwest Winds 10 to 20 Mph.

Tonight 31 Aug North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Lows in the 40s to upper 50s. West Winds 10 to 20 Mph.

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San Rafael Airport Temperature Statistics

August Temperature

Novato / Gnoss Field (8.7 miles)

  • Lowest 29 August, 2026

    50 °F

  • Average August

    66 °F

  • Highest 2 August, 2026

    98.6 °F

Climate (2021–2026)

Novato / Gnoss Field (8.7 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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