Santee Recreational Lakes Weather Forecast

    • 55
    • 84

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 54
    • 72

    Partly Sunny

    • 56
    • 76

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 56
    • 77

    Mostly Cloudy

Today 19 Oct San Diego County Inland Valleys

Mostly sunny. Highs 82 to 87. Areas of Winds east to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 19 Oct San Diego County Inland Valleys

Mostly clear. Lows 51 to 56. Light Winds.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Santee Recreational Lakes Temperature Statistics

October Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 16 October, 2025

    48.2 °F
  • Average October

    63.4 °F
  • Highest 10 October, 2025

    84.2 °F

Climate (2020–Present)

Gillespie Field Airport (1.9 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2020–2025

    52.9 °F
  • Average 2020–2025

    60.1 °F
  • Average High 2020–2025

    75.7 °F
Get WillyWeather+ to remove ads