Lake Henshaw Weather Forecast

    • 57
    • 82

    Rain Showers

    • 53
    • 82

    Slight Chance Thunderstorms

    • 53
    • 85

    Mostly Sunny

    • 55
    • 84

    Chance Rain Showers

    • 58
    • 87

    Slight Chance Rain Showers

    • 55
    • 87

    Slight Chance Thunderstorms

Today 18 Sep San Diego County Mountains

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms this Morning, then mostly cloudy with Showers and a chance of Thunderstorms this afternoon. Highs 74 to 82. Areas of Winds south 10 to 15 Mph.

Tonight 18 Sep San Diego County Mountains

Partly cloudy. A chance of Showers and a slight chance of Thunderstorms in the evening. Cooler. Lows 55 to 63. Areas of Winds west to 10 Mph becoming south 10 Mph overnight. Chance of measurable precipitation 40 percent.

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  • Temperature Real-Time

Lake Henshaw Temperature Statistics

September Temperature

Ramona, Ramona Airport (16.8 miles)

  • Lowest 9 September, 2025

    53.1 °F

  • Average September

    73.9 °F

  • Highest 2 September, 2025

    97 °F

Climate (2020–Present)

Ramona, Ramona Airport (16.8 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    64.1 °F

  • Average High 2020–2025

    76.6 °F
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