Weeks Lake Weather Forecast

    • 41
    • 68

    Increasing Clouds

    • 47
    • 69

    Chance Rain Showers

    • 45
    • 71

    Chance Rain Showers

    • 42
    • 70

    Partly Sunny

    • 42
    • 71

    Mostly Sunny

    • 43
    • 71

    Slight Chance Rain

Today 19 Oct North Bay Interior Mountains

Sunny late in the morning then becoming partly cloudy. Highs in the 50s to upper 60s. West Winds 5 to 10 Mph.

Tonight 19 Oct North Bay Interior Mountains

Cloudy. Lows in the upper 40s. West Winds up to 5 Mph in the evening. Becoming light.

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Weeks Lake Temperature Statistics

October Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (24.2 miles)

  • Lowest 14 October, 2026

    37.7 °F

  • Average October

    67 °F

  • Highest 3 October, 2026

    102.7 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (24.2 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    73 °F
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