Prospect Slough - French Island Weather Forecast

    • 40
    • 56

    Becoming Sunny

    • 35
    • 51

    Mostly Sunny

    • 36
    • 49

    Partly Sunny

    • 37
    • 50

    Mostly Cloudy

    • 38
    • 51

    Patchy Fog

    • 39
    • 52

    Partly Sunny

Today 7 Jan Carquinez Strait and Delta

Mostly cloudy in the morning then clearing. Patchy fog early in the morning. Highs around 57. West Winds up to 10 Mph.

Tonight 7 Jan Carquinez Strait and Delta

Mostly clear. Lows around 40. West Winds 10 to 15 Mph with Gusts to around 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Prospect Slough - French Island Temperature Statistics

January Temperature

Fairfield / Travis Air Force Base (13.7 miles)

  • Lowest 4 January, 2026

    45.9 °F

  • Average January

    53.6 °F

  • Highest 3 January, 2026

    63.7 °F

Climate (2021–Present)

Fairfield / Travis Air Force Base (13.7 miles)

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

  • Average Low 2021–2026

    48.7 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    74.9 °F
Get WillyWeather+ to remove ads