Simi Valley Weather Forecast

    • 49
    • 66

    Windy

    • 54
    • 71

    Breezy

    • 45
    • 73

    Breezy

    • 42
    • 72

    Partly Sunny

    • 41
    • 58

    Chance Rain Showers

    • 40
    • 55

    Chance Rain Showers

Today 21 Jan Southeastern Ventura County Valleys

Sunny. Highs in the upper 60s. Northeast Winds 25 to 40 Mph with Gusts to 60 Mph decreasing to 20 to 30 Mph with Gusts to 40 Mph in the afternoon.

Tonight 21 Jan Southeastern Ventura County Valleys

Mostly cloudy in the evening then partly cloudy. Lows in the mid 30s to mid 40s. Northeast Winds 15 to 25 Mph.

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Simi Valley Temperature Statistics

January Temperature

Van Nuys, Van Nuys Airport (14.9 miles)

  • Lowest 1 January, 2025

    40.6 °F

  • Average January

    59 °F

  • Highest 2 January, 2025

    80.7 °F

Climate (2020–Present)

Van Nuys, Van Nuys Airport (14.9 miles)

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  • Average Low 2020–2025

    56.9 °F

  • Average 2020–2025

    67.7 °F

  • Average High 2020–2025

    79.7 °F
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