Irmulco Weather Forecast

    • 61
    • 86

    Sunny

    • 57
    • 88

    Sunny

    • 56
    • 88

    Mostly Sunny

    • 60
    • 82

    Slight Chance Rain

    • 56
    • 78

    Slight Chance Rain

    • 56
    • 78

    Slight Chance Rain

Today 15 Sep Southwestern Mendocino Interior

Sunny. Highs 80 to 92.

Tonight 15 Sep Southwestern Mendocino Interior

Clear. Lows 56 to 66.

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Irmulco Temperature Statistics

September Temperature

Ukiah Municipal Airport (25.5 miles)

  • Lowest 7 September, 2025

    50 °F

  • Average September

    69.3 °F

  • Highest 2 September, 2025

    102.9 °F

Climate (2020–Present)

Ukiah Municipal Airport (25.5 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    76.3 °F
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