Mount Wilson Weather Forecast

    • 47
    • 62

    Mostly Sunny

    • 45
    • 60

    Mostly Sunny

    • 40
    • 53

    Chance Rain

    • 41
    • 52

    Mostly Sunny

    • 45
    • 57

    Partly Sunny

    • 46
    • 58

    Partly Sunny

Today 19 Apr Eastern San Gabriel Mountains

Partly cloudy in the morning then sunny. Highs from the upper 60s and 70s at low Elevations to the mid 50s to around 60 at high Elevations. South Winds 15 to 25 Mph in the afternoon.

Tonight 19 Apr Eastern San Gabriel Mountains

Mostly clear. Lows in the mid 40s to mid 50s except around 40 Colder Valleys and Slopes. South Winds 15 to 25 Mph.

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Mount Wilson Temperature Statistics

April Temperature

El Monte (9.9 miles)

  • Lowest 13 April, 2026

    55.4 °F

  • Average April

    71.4 °F

  • Highest 4 April, 2026

    89.6 °F

Climate (2021–Present)

El Monte (9.9 miles)

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  • Average Low 2021–2026

    59.7 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    77.3 °F
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