San Ramon Weather Forecast

    • 45
    • 62

    Rain Likely

    • 51
    • 61

    Chance Rain

    • 54
    • 61

    Rain

    • 54
    • 61

    Rain

    • 52
    • 60

    Rain

    • 50
    • 58

    Rain Likely

Today 17 Dec East Bay Interior Valleys

Becoming partly cloudy in the afternoon. Rain likely in the morning. Highs in the mid 60s. South Winds 5 to 10 Mph becoming west in the afternoon.

Tonight 17 Dec East Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 40s. Southwest Winds around 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Ramon Temperature Statistics

December Temperature

Livermore, Livermore Municipal Airport (10.6 miles)

  • Lowest 14 December, 2025

    34 °F

  • Average December

    43.4 °F

  • Highest 2 December, 2025

    63 °F

Climate (2020–Present)

Livermore, Livermore Municipal Airport (10.6 miles)

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  • Average Low 2020–2025

    48.8 °F

  • Average 2020–2025

    60.6 °F

  • Average High 2020–2025

    73.9 °F
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