San Quentin Weather Forecast

    • 46
    • 61

    Increasing Clouds

    • 47
    • 61

    Mostly Cloudy

    • 48
    • 62

    Mostly Cloudy

    • 47
    • 61

    Mostly Cloudy

    • 46
    • 62

    Mostly Sunny

    • 46
    • 63

    Mostly Sunny

Today 29 Jan North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 50s to upper 60s. North Winds up to 5 Mph. Becoming south in the afternoon.

Tonight 29 Jan North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog. Lows in the upper 30s to lower 50s. North Winds up to 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Quentin Temperature Statistics

January Temperature

Novato / Gnoss Field (14.3 miles)

  • Lowest 12 January, 2026

    33.8 °F

  • Average January

    50.2 °F

  • Highest 24 January, 2026

    71.6 °F

Climate (2021–Present)

Novato / Gnoss Field (14.3 miles)

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

  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    72.3 °F
Get WillyWeather+ to remove ads