Bethel Island Weather Forecast

    • 53
    • 82

    Becoming Sunny

    • 51
    • 80

    Mostly Sunny

    • 53
    • 76

    Partly Sunny

    • 50
    • 67

    Partly Sunny

    • 50
    • 72

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

Today 30 Apr East Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the lower 80s. West Winds up to 5 Mph.

Tonight 30 Apr East Bay Interior Valleys

Mostly clear. Lows in the lower 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Bethel Island Temperature Statistics

April Temperature

Concord, Buchanan Field (22.4 miles)

  • Lowest 2 April, 2025

    39.7 °F

  • Average April

    59.8 °F

  • Highest 14 April, 2025

    84.7 °F

Climate (2020–Present)

Concord, Buchanan Field (22.4 miles)

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

  • Average Low 2020–2025

    50.9 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    74.7 °F
Get WillyWeather+ to remove ads