Simi Valley Weather Forecast

    • 37
    • 54

    Rain Likely

    • 41
    • 50

    Rain

    • 43
    • 64

    Mostly Sunny

    • 47
    • 68

    Mostly Cloudy

    • 44
    • 65

    Chance Rain

    • 45
    • 64

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

Today 13 Mar Southeastern Ventura County Valleys

Showers likely with a slight chance of Thunderstorms in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower to mid 50s. West Winds around 15 Mph increasing to 20 to 30 Mph with Gusts to 45 Mph in the afternoon. Chance of precipitation 70 percent.

Tonight 13 Mar Southeastern Ventura County Valleys

Partly cloudy. A 20 percent chance of rain after midnight. Lows in the mid 30s to around 40. West Winds 15 to 25 Mph. Gusts to 40 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Simi Valley Temperature Statistics

March Temperature

Van Nuys, Van Nuys Airport (14.9 miles)

  • Lowest 8 March, 2025

    41 °F

  • Average March

    55.7 °F

  • Highest 9 March, 2025

    72 °F

Climate (2020–Present)

Van Nuys, Van Nuys Airport (14.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    56.9 °F

  • Average 2020–2025

    67.7 °F

  • Average High 2020–2025

    79.7 °F
Get WillyWeather+ to remove ads