Headwaters Forest Reserve Weather Forecast

    • 45
    • 58

    Mostly Sunny

    • 48
    • 66

    Mostly Sunny

    • 47
    • 63

    Mostly Cloudy

    • 47
    • 59

    Partly Sunny

    • 46
    • 57

    Mostly Cloudy

    • 45
    • 55

    Partly Sunny

    • 44
    • 54

    Partly Sunny

Today 31 May Southern Humboldt Interior

Sunny. Highs 67 to 82.

Tonight 31 May Southern Humboldt Interior

Mostly clear. Lows 44 to 54.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Headwaters Forest Reserve Temperature Statistics

May Temperature

Fortuna Rohnerville Airport (6.2 miles)

  • Lowest 18 May, 2026

    39.2 °F

  • Average May

    52.3 °F

  • Highest 12 May, 2026

    66.2 °F

Climate (2021–Present)

Fortuna Rohnerville Airport (6.2 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.7 °F
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