Lower Lake Weather Forecast

    • 54
    • 61

    Rain

    • 46
    • 59

    Rain Showers Likely

    • 49
    • 58

    Rain Likely

    • 52
    • 58

    Rain

    • 52
    • 57

    Rain

    • 50
    • 56

    Rain

    • 48
    • 54

    Rain Likely

Today 16 Dec Southern Lake County

Mostly cloudy. Patchy valley fog in the morning. Chance of rain in the Morning, then rain likely in the afternoon. Highs 58 to 68.

Tonight 16 Dec Southern Lake County

Rain likely in the Evening, then rain overnight. Lows 46 to 56. Southwest wind around 20 Mph overnight.

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Lower Lake Temperature Statistics

December Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (30.4 miles)

  • Lowest 4 December, 2025

    34 °F

  • Average December

    43.9 °F

  • Highest 3 December, 2025

    68 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (30.4 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.5 °F
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