Island Mountain Weather Forecast

    • 34
    • 50

    Mostly Sunny

    • 41
    • 57

    Mostly Sunny

    • 45
    • 67

    Sunny

    • 43
    • 68

    Mostly Sunny

    • 36
    • 59

    Partly Sunny

    • 37
    • 55

    Mostly Sunny

    • 40
    • 59

    Partly Sunny

Today 5 Mar Northeastern Mendocino Interior

Sunny. Highs 48 to 63. Northwest wind 20 to 25 Mph at higher elevation.

Tonight 5 Mar Northeastern Mendocino Interior

Mostly clear. Lows 31 to 41. North wind around 20 Mph in the evening.

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  • Temperature Real-Time

Island Mountain Temperature Statistics

March Temperature

Fortuna Rohnerville Airport (52.8 miles)

  • Lowest 2 March, 2026

    46.4 °F

  • Average March

    52.5 °F

  • Highest 1 March, 2026

    62.6 °F

Climate (2021–Present)

Fortuna Rohnerville Airport (52.8 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.6 °F
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