San Rafael Airport Weather Forecast

    • 54
    • 73

    Rain Likely

    • 53
    • 75

    Increasing Clouds

    • 53
    • 77

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

    • 58
    • 86

    Partly Sunny

    • 60
    • 84

    Partly Sunny

Today 3 Sep North Bay Interior Valleys

Mostly cloudy. A chance of rain. Highs in the lower 60s to mid 70s. Southwest Winds 10 to 20 Mph.

Tonight 3 Sep North Bay Interior Valleys

Partly cloudy. Patchy fog. Lows in the 40s to mid 50s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

San Rafael Airport Temperature Statistics

September Temperature

Novato / Gnoss Field (8.7 miles)

  • Lowest 1 September, 2026

    59 °F

  • Average September

    65.6 °F

  • Highest 1 September, 2026

    73.4 °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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