Irmulco Weather Forecast

    • 40
    • 58

    Sunny

    • 42
    • 59

    Increasing Clouds

    • 50
    • 58

    Rain

    • 51
    • 56

    Rain

    • 45
    • 56

    Rain

    • 44
    • 53

    Rain

    • 46
    • 53

    Rain Likely

Today 29 Dec Southwestern Mendocino Interior

Sunny. Patchy valley fog in the morning. Highs 56 to 66.

Tonight 29 Dec Southwestern Mendocino Interior

Partly cloudy. Patchy valley fog. Lows 37 to 47.

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Irmulco Temperature Statistics

December Temperature

Ukiah Municipal Airport (25.5 miles)

  • Lowest 13 December, 2025

    30 °F

  • Average December

    49.5 °F

  • Highest 10 December, 2025

    72 °F

Climate (2020–Present)

Ukiah Municipal Airport (25.5 miles)

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  • Average Low 2020–2025

    47.1 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    76 °F
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