Byron Weather Forecast

    • 36
    • 53

    Mostly Sunny

    • 34
    • 50

    Partly Sunny

    • 37
    • 52

    Mostly Cloudy

    • 38
    • 53

    Mostly Cloudy

    • 39
    • 55

    Partly Sunny

    • 41
    • 56

    Partly Sunny

Today 8 Jan East Bay Interior Valleys

Sunny. Highs in the mid 50s. Northwest Winds 10 to 15 Mph.

Tonight 8 Jan East Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 30s. North Winds 5 to 10 Mph.

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Byron Temperature Statistics

January Temperature

Livermore, Livermore Municipal Airport (14.9 miles)

  • Lowest 4 January, 2026

    46 °F

  • Average January

    54.5 °F

  • Highest 1 January, 2026

    62.1 °F

Climate (2021–Present)

Livermore, Livermore Municipal Airport (14.9 miles)

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  • Average Low 2021–2026

    48.9 °F

  • Average 2021–2026

    60.6 °F

  • Average High 2021–2026

    73.9 °F
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