Rio Nido Weather Forecast

    • 53
    • 79

    Mostly Cloudy

    • 52
    • 78

    Partly Sunny

    • 52
    • 82

    Mostly Sunny

    • 56
    • 87

    Partly Sunny

    • 57
    • 88

    Partly Sunny

    • 53
    • 83

    Mostly Sunny

    • 51
    • 79

    Mostly Sunny

Today 20 Sep North Bay Interior Valleys

Mostly cloudy. Highs in the upper 60s to lower 80s. South Winds 5 to 10 Mph.

Tonight 20 Sep North Bay Interior Valleys

Mostly cloudy. Patchy fog after midnight. Lows in the 40s to upper 50s. Southwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Nido Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (8.7 miles)

  • Lowest 5 September, 2026

    46.7 °F

  • Average September

    67.3 °F

  • Highest 10 September, 2026

    101.6 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (8.7 miles)

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

  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    72.9 °F
Get WillyWeather+ to remove ads