Simi Weather Forecast

    • 55
    • 90

    Increasing Clouds

    • 55
    • 89

    Mostly Sunny

    • 51
    • 87

    Mostly Sunny

    • 52
    • 84

    Mostly Sunny

    • 55
    • 85

    Sunny

    • 54
    • 86

    Mostly Sunny

Today 10 May North Bay Interior Valleys

Sunny. Highs in the mid 70s to lower 90s. Northeast Winds 10 to 20 Mph. Becoming northwest 5 to 15 Mph in the afternoon.

Tonight 10 May North Bay Interior Valleys

Mostly clear. Lows in the upper 40s to lower 60s. West Winds 5 to 15 Mph.

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Simi Temperature Statistics

May Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (9.9 miles)

  • Lowest 6 May, 2024

    38.6 °F

  • Average May

    60.1 °F

  • Highest 8 May, 2024

    82 °F

Climate (2019–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (9.9 miles)

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  • Average Low 2019–2024

    45.3 °F

  • Average 2019–2024

    57 °F

  • Average High 2019–2024

    72.4 °F
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