San Gabriel Reservoir Weather Forecast

    • 42
    • 61

    Partly Sunny

    • 38
    • 61

    Mostly Sunny

    • 36
    • 57

    Sunny

    • 38
    • 60

    Mostly Sunny

    • 41
    • 63

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

    • 45
    • 68

    Mostly Sunny

Today 6 Jan Eastern San Gabriel Mountains

Mostly cloudy in the morning then partly cloudy. Highs from the 50s to around 60 at low Elevations to the upper 30s to mid 40s at high Elevations.

Tonight 6 Jan Eastern San Gabriel Mountains

Mostly clear in the evening then partly cloudy. Lows in the upper 30s and 40s except the mid 20s to around 30 Colder Valleys and Slopes.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Gabriel Reservoir Temperature Statistics

January Temperature

Brackett Field Airport (9.3 miles)

  • Lowest 1 January, 2026

    53.6 °F

  • Average January

    58.3 °F

  • Highest 2 January, 2026

    64.4 °F

Climate (2021–Present)

Brackett Field Airport (9.3 miles)

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  • Average Low 2021–2026

    55.6 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    75.6 °F
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