Saint John Mountain Weather Forecast

    • 55
    • 70

    Sunny

    • 56
    • 70

    Sunny

    • 59
    • 72

    Sunny

    • 62
    • 75

    Sunny

    • 61
    • 75

    Mostly Sunny

    • 61
    • 74

    Partly Sunny

Today 6 Jul Glenn and Colusa County Coast Range Above 3000 ft

Sunny. Highs 72 to 82. East Winds up to 10 Mph.

Tonight 6 Jul Glenn and Colusa County Coast Range Above 3000 ft

Clear. Lows 54 to 64. South Winds around 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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Saint John Mountain Temperature Statistics

July Temperature

Ukiah Municipal Airport (34.2 miles)

  • Lowest 1 July, 2026

    52.6 °F

  • Average July

    74.4 °F

  • Highest 3 July, 2026

    96.7 °F

Climate (2021–2026)

Ukiah Municipal Airport (34.2 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.2 °F
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