Steamboat Slough - Simpson Weather Forecast

    • 48
    • 57

    Rain Showers

    • 44
    • 56

    Rain

    • 37
    • 50

    Partly Sunny

    • 36
    • 49

    Partly Sunny

    • 36
    • 48

    Mostly Cloudy

    • 38
    • 49

    Partly Sunny

Today 25 Dec Carquinez Strait and Delta

Rain Showers likely and a slight chance of Thunderstorms. Windy. Some Thunderstorms may produce heavy rainfall. Highs 54 to 59. South Winds 20 to 35 Mph. Gusts up to 60 Mph decreasing to 45 Mph in the afternoon.

Tonight 25 Dec Carquinez Strait and Delta

Rain Showers and a slight chance of Thunderstorms in the Evening, then rain after midnight. Windy. Some Thunderstorms may produce heavy rainfall in the evening. Lows around 49. South Winds 15 to 30 Mph with Gusts to around 45 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Steamboat Slough - Simpson Temperature Statistics

December Temperature

Sacramento Executive Airport (18 miles)

  • Lowest 2 December, 2025

    37 °F

  • Average December

    47.1 °F

  • Highest 17 December, 2025

    64 °F

Climate (2020–Present)

Sacramento Executive Airport (18 miles)

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

  • Average Low 2020–2025

    50.2 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    75.5 °F
Get WillyWeather+ to remove ads