Mount Wilson Weather Forecast

    • 53
    • 66

    Partly Sunny

    • 52
    • 65

    Becoming Sunny

    • 50
    • 64

    Sunny

    • 48
    • 61

    Sunny

    • 46
    • 59

    Mostly Sunny

    • 45
    • 57

    Partly Sunny

    • 44
    • 53

    Partly Sunny

Today 17 Jan Eastern San Gabriel Mountains

Mostly cloudy in the morning then partly cloudy. Highs from the upper 60s and 70s at low Elevations to the mid 40s to lower 50s at high Elevations. Northeast Winds 15 to 25 Mph.

Tonight 17 Jan Eastern San Gabriel Mountains

Partly cloudy. Lows in the 50s to lower 60s except the upper 30s to mid 40s Colder Valleys and Slopes. Northeast Winds around 15 Mph.

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Mount Wilson Temperature Statistics

January Temperature

El Monte (9.9 miles)

  • Lowest 10 January, 2026

    39.2 °F

  • Average January

    65 °F

  • Highest 14 January, 2026

    84.2 °F

Climate (2021–Present)

El Monte (9.9 miles)

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  • Average Low 2021–2026

    59.4 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    76.9 °F
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