Simi Valley Weather Forecast

    • 51
    • 80

    Gradual Clearing

    • 50
    • 75

    Partly Sunny

    • 50
    • 75

    Partly Sunny

    • 53
    • 75

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 56
    • 79

    Sunny

Today 17 Jun Southeastern Ventura County Valleys

Low Clouds and fog in the morning then sunny. Highs in the mid 70s to lower 80s. West Winds around 15 Mph in the afternoon.

Tonight 17 Jun Southeastern Ventura County Valleys

Partly cloudy in the evening then mostly cloudy. Patchy drizzle after midnight. Lows in the upper 40s and 50s.

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Simi Valley Temperature Statistics

June Temperature

Van Nuys, Van Nuys Airport (14.9 miles)

  • Lowest 3 June, 2026

    56.6 °F

  • Average June

    73.5 °F

  • Highest 12 June, 2026

    96.7 °F

Climate (2021–2026)

Van Nuys, Van Nuys Airport (14.9 miles)

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  • Average Low 2021–2026

    56.6 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    79.6 °F
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