Clayton Weather Forecast

    • 44
    • 66

    Mostly Cloudy

    • 47
    • 62

    Increasing Clouds

    • 52
    • 62

    Rain

    • 53
    • 60

    Rain Showers

    • 51
    • 61

    Rain

    • 46
    • 58

    Rain Likely

    • 47
    • 55

    Rain

Today 17 Dec East Bay Interior Valleys

Partly cloudy. Highs in the mid 60s. West Winds 5 to 10 Mph.

Tonight 17 Dec East Bay Interior Valleys

Mostly cloudy. Areas of dense fog. Lows in the upper 40s. Southwest Winds around 5 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clayton Temperature Statistics

December Temperature

Concord, Buchanan Field (6.8 miles)

  • Lowest 4 December, 2025

    37.9 °F

  • Average December

    44.2 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

Concord, Buchanan Field (6.8 miles)

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

  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.2 °F

  • Average High 2020–2025

    74.2 °F
Get WillyWeather+ to remove ads