Saint John Mountain Weather Forecast

    • 64
    • 74

    Mostly Sunny

    • 63
    • 75

    Sunny

    • 61
    • 74

    Sunny

    • 60
    • 74

    Sunny

    • 52
    • 71

    Mostly Sunny

    • 47
    • 59

    Mostly Sunny

Today 5 Oct Glenn and Colusa County Coast Range Above 3000 ft

Sunny. Highs 77 to 87. Light Winds.

Tonight 5 Oct Glenn and Colusa County Coast Range Above 3000 ft

Clear. Lows 63 to 73. Northwest Winds up to 10 Mph.

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Saint John Mountain Temperature Statistics

October Temperature

Ukiah Municipal Airport (34.2 miles)

  • Lowest 1 October, 2026

    53.1 °F

  • Average October

    72.2 °F

  • Highest 1 October, 2026

    96.1 °F

Climate (2021–2026)

Ukiah Municipal Airport (34.2 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76 °F
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