Mount Gleason Weather Forecast

    • 59
    • 69

    Breezy

    • 61
    • 64

    Rain Showers Likely

    • 66
    • 70

    Mostly Sunny

    • 68
    • 73

    Slight Chance Rain Showers

    • 70
    • 78

    Mostly Sunny

    • 68
    • 78

    Mostly Sunny

    • 62
    • 75

    Mostly Sunny

Today 5 Sep Western San Gabriel Mountains and Highway 14 Corridor

Sunny. Highs from the upper 70s and 80s at low Elevations to the upper 60s to mid 70s at high Elevations. Southwest Winds 15 to 25 Mph.

Tonight 5 Sep Western San Gabriel Mountains and Highway 14 Corridor

Mostly clear in the Evening, becoming mostly cloudy with a slight chance of Showers after midnight. Lows in the upper 50s to mid 60s. Southwest Winds 15 to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gleason Temperature Statistics

September Temperature

Los Angeles, Whiteman Airport (14.9 miles)

  • Lowest 1 September, 2026

    64.4 °F

  • Average September

    76.1 °F

  • Highest 1 September, 2026

    84.2 °F

Climate (2021–2026)

Los Angeles, Whiteman Airport (14.9 miles)

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  • Average Low 2021–2026

    60.5 °F

  • Average 2021–2026

    70.4 °F

  • Average High 2021–2026

    76.5 °F
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