Weeks Lake Weather Forecast

    • 41
    • 59

    Rain Showers

    • 41
    • 64

    Chance Rain

    • 44
    • 72

    Mostly Sunny

    • 46
    • 75

    Mostly Sunny

    • 46
    • 71

    Partly Sunny

    • 44
    • 69

    Partly Sunny

Today 21 Apr North Bay Interior Mountains

Showers likely in the morning. A chance of Thunderstorms. Showers in the afternoon. Some Thunderstorms may produce small hail. Highs in the 40s to upper 50s. South Winds 5 to 10 Mph.

Tonight 21 Apr North Bay Interior Mountains

Rain likely in the Evening, then a chance of rain after midnight. Lows in the mid 40s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Weeks Lake Temperature Statistics

April Temperature

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

  • Lowest 2 April, 2026

    36.6 °F

  • Average April

    57.4 °F

  • Highest 5 April, 2026

    83.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    72.8 °F
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