Fortuna Weather Forecast

    • 20
    • 27

    Increasing Clouds

    • 34
    • 49

    Mostly Cloudy

    • 37
    • 59

    Partly Sunny

    • 43
    • 67

    Partly Sunny

    • 33
    • 62

    Mostly Cloudy

    • 27
    • 49

    Chance Rain

Today 16 Mar Divide

Sunny. Highs in the mid 20s. Southeast Winds 5 to 15 Mph.

Tonight 16 Mar Divide

Partly cloudy. Lows around 5 below. South Winds around 5 Mph.

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Fortuna Temperature Statistics

March Temperature

CROSBY (21.7 miles)

  • Lowest 1 March, 2026

    1.4 °F

  • Average March

    24.7 °F

  • Highest 8 March, 2026

    59 °F

Climate (2021–Present)

CROSBY (21.7 miles)

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  • Average Low 2021–2026

    28.3 °F

  • Average 2021–2026

    39.6 °F

  • Average High 2021–2026

    50.9 °F
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