Prospect Slough - French Island Weather Forecast

    • 47
    • 54

    Rain

    • 44
    • 53

    Rain

    • 45
    • 54

    Mostly Cloudy

    • 41
    • 53

    Chance Rain

    • 38
    • 52

    Mostly Sunny

    • 37
    • 50

    Partly Sunny

    • 38
    • 51

    Partly Sunny

Today 4 Jan Carquinez Strait and Delta

Rain Showers and a slight chance of Thunderstorms early in the Morning, then rain in the late morning and afternoon. Highs around 54. South Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 4 Jan Carquinez Strait and Delta

Mostly cloudy. A chance of rain early in the Evening, then a slight chance of rain late in the evening. A chance of rain late in the night. Patchy fog late in the night. Lows around 47. South Winds 10 to 15 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 2 January, 2026

    47.1 °F

  • Average January

    53.6 °F

  • Highest 2 January, 2026

    58.8 °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

    75 °F
Get WillyWeather+ to remove ads