Geyserville Weather Forecast

    • 50
    • 86

    Increasing Clouds

    • 49
    • 81

    Partly Sunny

    • 48
    • 73

    Partly Sunny

    • 48
    • 73

    Slight Chance Rain

    • 49
    • 74

    Slight Chance Rain

    • 47
    • 78

    Partly Sunny

Today 30 Aug North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the lower 70s to mid 80s. South Winds 5 to 15 Mph.

Tonight 30 Aug North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Geyserville Temperature Statistics

August Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (14.9 miles)

  • Lowest 22 August, 2026

    47.6 °F

  • Average August

    69.5 °F

  • Highest 1 August, 2026

    98.7 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (14.9 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    72.9 °F
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