San Ramon Weather Forecast

    • 45
    • 62

    Chance Rain Showers

    • 44
    • 62

    Mostly Sunny

    • 45
    • 64

    Mostly Cloudy

    • 47
    • 64

    Mostly Cloudy

    • 48
    • 63

    Partly Sunny

    • 48
    • 62

    Partly Sunny

Today 31 Oct East Bay Interior Valleys

Mostly cloudy. Patchy fog in the morning. Highs in the mid 60s. Southwest Winds 5 to 10 Mph.

Tonight 31 Oct East Bay Interior Valleys

Mostly cloudy in the evening then becoming partly cloudy. Patchy fog after midnight. A chance of Showers after midnight. Lows in the upper 40s. West Winds up to 5 Mph in the evening. Becoming light.

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San Ramon Temperature Statistics

October Temperature

Livermore, Livermore Municipal Airport (10.6 miles)

  • Lowest 24 October, 2026

    42.7 °F

  • Average October

    67.5 °F

  • Highest 6 October, 2026

    102.7 °F

Climate (2021–2026)

Livermore, Livermore Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    74.2 °F
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