Lake Poway Weather Forecast

    • 64
    • 86

    Mostly Sunny

    • 64
    • 87

    Mostly Sunny

    • 65
    • 87

    Mostly Sunny

    • 66
    • 87

    Mostly Sunny

    • 67
    • 90

    Mostly Sunny

    • 68
    • 91

    Partly Sunny

Today 18 Jul San Diego County Inland Valleys

Partly cloudy in the morning. Becoming sunny. Highs 81 to 86 in the western Valleys to 86 to 91 near the Foothills. Light Winds becoming west 10 Mph in the afternoon.

Tonight 18 Jul San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 61 to 66. Areas of Winds southwest to 10 Mph this evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Poway Temperature Statistics

July Temperature

Ramona, Ramona Airport (5.6 miles)

  • Lowest 10 July, 2026

    50 °F

  • Average July

    72.4 °F

  • Highest 15 July, 2026

    99 °F

Climate (2021–2026)

Ramona, Ramona Airport (5.6 miles)

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

  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    64.6 °F

  • Average High 2021–2026

    76.8 °F
Get WillyWeather+ to remove ads