Guernewood Weather Forecast

    • 51
    • 71

    Patchy Fog

    • 50
    • 68

    Gradual Clearing

    • 49
    • 68

    Partly Sunny

    • 50
    • 67

    Partly Sunny

    • 49
    • 70

    Sunny

    • 53
    • 75

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

Today 22 May North Bay Interior Valleys

Sunny. Highs in the mid 60s to lower 80s. Southwest Winds 5 to 15 Mph.

Tonight 22 May North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Guernewood Temperature Statistics

May Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (10.6 miles)

  • Lowest 13 May, 2026

    44.7 °F

  • Average May

    63.4 °F

  • Highest 19 May, 2026

    88 °F

Climate (2021–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (10.6 miles)

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

  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    72.8 °F
Get WillyWeather+ to remove ads