Simi Weather Forecast

    • 48
    • 71

    Partly Sunny

    • 49
    • 76

    Partly Sunny

    • 52
    • 80

    Mostly Cloudy

    • 53
    • 81

    Mostly Cloudy

    • 52
    • 78

    Mostly Cloudy

    • 52
    • 66

    Rain

    • 50
    • 62

    Rain

Today 7 Nov North Bay Interior Valleys

Partly cloudy late in the morning then becoming sunny. Patchy fog late in the morning. Highs in the 60s to mid 70s. West Winds 5 to 10 Mph.

Tonight 7 Nov North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the upper 40s to mid 50s. Northwest Winds up to 5 Mph in the evening. Becoming light.

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Simi Temperature Statistics

November Temperature

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

  • Lowest 1 November, 2025

    42.1 °F

  • Average November

    58.4 °F

  • Highest 2 November, 2025

    79 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    72.6 °F
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