South Bay Weather Forecast

    • 51
    • 54

    Rain Showers Likely

    • 51
    • 55

    Chance Rain

    • 51
    • 57

    Chance Rain

    • 49
    • 55

    Mostly Cloudy

    • 48
    • 55

    Partly Sunny

    • 47
    • 57

    Mostly Sunny

Today 26 May Northern Humboldt Coast

Patchy fog in the morning. Rain in the Morning, then rain Showers likely and slight chance of Thunderstorms in the afternoon. Highs 50 to 60. West wind 5 to 15 Mph.

Tonight 26 May Northern Humboldt Coast

Mostly cloudy. Slight chance of rain in the evening. Lows 43 to 53. North wind 5 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Bay Temperature Statistics

May Temperature

Fortuna Rohnerville Airport (11.2 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 (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.7 °F
Get WillyWeather+ to remove ads