Capetown Weather Forecast

    • 52
    • 61

    Increasing Clouds

    • 52
    • 60

    Partly Sunny

    • 54
    • 64

    Partly Sunny

    • 57
    • 68

    Mostly Cloudy

    • 59
    • 70

    Mostly Cloudy

    • 58
    • 70

    Slight Chance Rain

Today 5 Sep Northern Coastal Humboldt

Mostly sunny until early afternoon then becoming mostly cloudy. Patchy fog in the morning. Highs 60 to 70. Northeast wind around 5 Mph shifting to the northwest in the afternoon.

Tonight 5 Sep Northern Coastal Humboldt

Mostly cloudy. Patchy fog overnight. Lows 45 to 55. North wind around 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Capetown Temperature Statistics

September Temperature

Fortuna Rohnerville Airport (13 miles)

  • Lowest 2 September, 2026

    55.4 °F

  • Average September

    59.8 °F

  • Highest 1 September, 2026

    71.6 °F

Climate (2021–2026)

Fortuna Rohnerville Airport (13 miles)

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

  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.8 °F
Get WillyWeather+ to remove ads