San Francisco Bay - Hercules, Refugio Landing Weather Forecast

    • 56
    • 65

    Chance Drizzle

    • 55
    • 63

    Mostly Sunny

    • 52
    • 63

    Sunny

    • 53
    • 64

    Mostly Sunny

    • 53
    • 58

    Rain Likely

    • 53
    • 58

    Rain Likely

Today 9 Oct East Bay Interior Valleys

Sunny. A slight chance of drizzle in the morning. Highs in the upper 70s. South Winds around 5 Mph. Becoming west in the afternoon.

Tonight 9 Oct East Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. West Winds 5 to 10 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Hercules, Refugio Landing Temperature Statistics

October Temperature

Napa, Napa County Airport (12.4 miles)

  • Lowest 4 October, 2025

    46.9 °F

  • Average October

    64.3 °F

  • Highest 7 October, 2025

    88 °F

Climate (2020–Present)

Napa, Napa County Airport (12.4 miles)

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

  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.4 °F
Get WillyWeather+ to remove ads