Saint John Mountain Weather Forecast

    • 55
    • 66

    Becoming Sunny

    • 57
    • 68

    Mostly Sunny

    • 60
    • 71

    Mostly Sunny

    • 61
    • 74

    Mostly Sunny

    • 58
    • 72

    Mostly Sunny

    • 59
    • 70

    Mostly Sunny

    • 59
    • 71

    Sunny

Today 26 Jul Mountains Southwestern Shasta County to Western Colusa County

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs 67 to 82 higher Elevations. 82 to 88 lower Elevations. Light Winds becoming southeast up to 10 Mph in the afternoon.

Tonight 26 Jul Mountains Southwestern Shasta County to Western Colusa County

Clear. A slight chance of Showers and Thunderstorms early in the evening. Lows 54 to 66. Prevailing southwest Winds up to 10 Mph in the evening becoming light.

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Saint John Mountain Temperature Statistics

July Temperature

Ukiah Municipal Airport (34.2 miles)

  • Lowest 5 July, 2025

    48.7 °F

  • Average July

    74.5 °F

  • Highest 11 July, 2025

    105.7 °F

Climate (2020–Present)

Ukiah Municipal Airport (34.2 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    76.3 °F
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