Merlo Lake Weather Forecast

    • 54
    • 83

    Increasing Clouds

    • 51
    • 75

    Mostly Cloudy

    • 48
    • 66

    Chance Rain

    • 45
    • 61

    Rain Likely

    • 43
    • 63

    Slight Chance Rain

    • 48
    • 75

    Sunny

Today 29 Mar North Bay Interior Valleys

Sunny in the morning then becoming partly cloudy. Highs in the 70s to mid 80s. Northwest Winds up to 5 Mph increasing to west 10 to 15 Mph in the afternoon.

Tonight 29 Mar North Bay Interior Valleys

Mostly clear. Lows in the upper 40s to lower 60s. Northwest Winds up to 5 Mph.

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  • Temperature Real-Time

Merlo Lake Temperature Statistics

March Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 miles)

  • Lowest 10 March, 2026

    38.6 °F

  • Average March

    62 °F

  • Highest 20 March, 2026

    91.7 °F

Climate (2021–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    72.8 °F
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