Big Signal Peak Weather Forecast

    • 40
    • 56

    Breezy

    • 38
    • 45

    Breezy

    • 47
    • 51

    Chance Rain

    • 48
    • 53

    Slight Chance Rain

    • 47
    • 61

    Mostly Sunny

    • 46
    • 61

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

Today 25 May Northeastern Mendocino Interior

Partly cloudy. Highs 70 to 85.

Tonight 25 May Northeastern Mendocino Interior

Partly cloudy early in the evening then becoming mostly cloudy. Slight chance of rain overnight. Snow level 5000 feet overnight. Lows 36 to 46.

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Big Signal Peak Temperature Statistics

May Temperature

Ukiah Municipal Airport (27.3 miles)

  • Lowest 18 May, 2026

    42.7 °F

  • Average May

    66.3 °F

  • Highest 11 May, 2026

    94.6 °F

Climate (2021–Present)

Ukiah Municipal Airport (27.3 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.3 °F
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